diff --git a/atcoder/abc359/a.rs b/atcoder/abc359/a.rs
new file mode 100644
index 00000000..749a8368
--- /dev/null
+++ b/atcoder/abc359/a.rs
@@ -0,0 +1,35 @@
+use std::io::Read;
+
+fn get_word() -> String {
+    let stdin = std::io::stdin();
+    let mut stdin=stdin.lock();
+    let mut u8b: [u8; 1] = [0];
+    loop {
+        let mut buf: Vec<u8> = Vec::with_capacity(16);
+        loop {
+            let res = stdin.read(&mut u8b);
+            if res.unwrap_or(0) == 0 || u8b[0] <= b' ' {
+                break;
+            } else {
+                buf.push(u8b[0]);
+            }
+        }
+        if buf.len() >= 1 {
+            let ret = String::from_utf8(buf).unwrap();
+            return ret;
+        }
+    }
+}
+
+fn get<T: std::str::FromStr>() -> T { get_word().parse().ok().unwrap() }
+
+fn main() {
+    let n: i32 = get();
+    let mut c = 0;
+    for _ in 0..n {
+        if get_word() == "Takahashi" {
+            c += 1;
+        }
+    }
+    println!("{}", c);
+}
diff --git a/atcoder/abc359/b.rs b/atcoder/abc359/b.rs
new file mode 100644
index 00000000..3201d04d
--- /dev/null
+++ b/atcoder/abc359/b.rs
@@ -0,0 +1,34 @@
+use std::io::Read;
+
+fn get_word() -> String {
+    let stdin = std::io::stdin();
+    let mut stdin=stdin.lock();
+    let mut u8b: [u8; 1] = [0];
+    loop {
+        let mut buf: Vec<u8> = Vec::with_capacity(16);
+        loop {
+            let res = stdin.read(&mut u8b);
+            if res.unwrap_or(0) == 0 || u8b[0] <= b' ' {
+                break;
+            } else {
+                buf.push(u8b[0]);
+            }
+        }
+        if buf.len() >= 1 {
+            let ret = String::from_utf8(buf).unwrap();
+            return ret;
+        }
+    }
+}
+
+fn get<T: std::str::FromStr>() -> T { get_word().parse().ok().unwrap() }
+
+fn main() {
+    let n: usize = get();
+    let mut occ = vec![vec![]; n];
+    for i in 0..2 * n {
+        let x: usize = get();
+        occ[x - 1].push(i);
+    }
+    println!("{}", (0..n).filter(|&i| occ[i][1] - occ[i][0] == 2).count());
+}
diff --git a/atcoder/abc359/e.rs b/atcoder/abc359/e.rs
new file mode 100644
index 00000000..9d260c9e
--- /dev/null
+++ b/atcoder/abc359/e.rs
@@ -0,0 +1,64 @@
+use std::io::{Write, BufWriter};
+// https://qiita.com/tanakh/items/0ba42c7ca36cd29d0ac8
+macro_rules! input {
+    ($($r:tt)*) => {
+        let stdin = std::io::stdin();
+        let mut bytes = std::io::Read::bytes(std::io::BufReader::new(stdin.lock()));
+        let mut next = move || -> String{
+            bytes.by_ref().map(|r|r.unwrap() as char)
+                .skip_while(|c|c.is_whitespace())
+                .take_while(|c|!c.is_whitespace())
+                .collect()
+        };
+        input_inner!{next, $($r)*}
+    };
+}
+
+macro_rules! input_inner {
+    ($next:expr) => {};
+    ($next:expr,) => {};
+    ($next:expr, $var:ident : $t:tt $($r:tt)*) => {
+        let $var = read_value!($next, $t);
+        input_inner!{$next $($r)*}
+    };
+}
+
+macro_rules! read_value {
+    ($next:expr, [ $t:tt ; $len:expr ]) => {
+        (0..$len).map(|_| read_value!($next, $t)).collect::<Vec<_>>()
+    };
+    ($next:expr, $t:ty) => ($next().parse::<$t>().expect("Parse error"));
+}
+
+fn main() {
+    let out = std::io::stdout();
+    let mut out = BufWriter::new(out.lock());
+    macro_rules! puts {($($format:tt)*) => (let _ = write!(out,$($format)*););}
+    macro_rules! putvec {
+        ($v:expr) => {
+            for i in 0..$v.len() {
+                puts!("{}{}", $v[i], if i + 1 == $v.len() {"\n"} else {" "});
+            }
+        }
+    }
+    input! {
+        n: usize,
+        a: [i64; n],
+    }
+    let mut st = vec![(1 << 40, 0)];
+    let mut tot = 0;
+    let mut ans = vec![];
+    for i in 0..n {
+        while let Some(v) = st.pop() {
+            if v > (a[i], i + 1) {
+                st.push(v);
+                break;
+            }
+            tot -= v.0 * (v.1 - st[st.len() - 1].1) as i64;
+        }
+        st.push((a[i], i + 1));
+        tot += a[i] * (i + 1 - st[st.len() - 2].1) as i64;
+        ans.push(tot + 1);
+    }
+    putvec!(ans);
+}
diff --git a/atcoder/abc359/f.rs b/atcoder/abc359/f.rs
new file mode 100644
index 00000000..ffa7b28c
--- /dev/null
+++ b/atcoder/abc359/f.rs
@@ -0,0 +1,51 @@
+use std::cmp::*;
+use std::collections::*;
+// https://qiita.com/tanakh/items/0ba42c7ca36cd29d0ac8
+macro_rules! input {
+    ($($r:tt)*) => {
+        let stdin = std::io::stdin();
+        let mut bytes = std::io::Read::bytes(std::io::BufReader::new(stdin.lock()));
+        let mut next = move || -> String{
+            bytes.by_ref().map(|r|r.unwrap() as char)
+                .skip_while(|c|c.is_whitespace())
+                .take_while(|c|!c.is_whitespace())
+                .collect()
+        };
+        input_inner!{next, $($r)*}
+    };
+}
+
+macro_rules! input_inner {
+    ($next:expr) => {};
+    ($next:expr,) => {};
+    ($next:expr, $var:ident : $t:tt $($r:tt)*) => {
+        let $var = read_value!($next, $t);
+        input_inner!{$next $($r)*}
+    };
+}
+
+macro_rules! read_value {
+    ($next:expr, [ $t:tt ; $len:expr ]) => {
+        (0..$len).map(|_| read_value!($next, $t)).collect::<Vec<_>>()
+    };
+    ($next:expr, $t:ty) => ($next().parse::<$t>().expect("Parse error"));
+}
+
+fn main() {
+    input! {
+        n: usize,
+        a: [i64; n],
+    }
+    let mut que = BinaryHeap::new();
+    let mut ans = 0;
+    for i in 0..n {
+        ans += a[i];
+        que.push((Reverse(a[i] * 3), i, 2));
+    }
+    for _ in 0..n - 2 {
+        let (Reverse(v), i, c) = que.pop().unwrap();
+        ans += v;
+        que.push((Reverse(a[i] * (2 * c + 1)), i, c + 1));
+    }
+    println!("{}", ans);
+}
diff --git a/atcoder/abc359/g.rs b/atcoder/abc359/g.rs
new file mode 100644
index 00000000..7f71b947
--- /dev/null
+++ b/atcoder/abc359/g.rs
@@ -0,0 +1,93 @@
+use std::collections::*;
+// https://qiita.com/tanakh/items/0ba42c7ca36cd29d0ac8
+macro_rules! input {
+    ($($r:tt)*) => {
+        let stdin = std::io::stdin();
+        let mut bytes = std::io::Read::bytes(std::io::BufReader::new(stdin.lock()));
+        let mut next = move || -> String{
+            bytes.by_ref().map(|r|r.unwrap() as char)
+                .skip_while(|c|c.is_whitespace())
+                .take_while(|c|!c.is_whitespace())
+                .collect()
+        };
+        input_inner!{next, $($r)*}
+    };
+}
+
+macro_rules! input_inner {
+    ($next:expr) => {};
+    ($next:expr,) => {};
+    ($next:expr, $var:ident : $t:tt $($r:tt)*) => {
+        let $var = read_value!($next, $t);
+        input_inner!{$next $($r)*}
+    };
+}
+
+macro_rules! read_value {
+    ($next:expr, ( $($t:tt),* )) => { ($(read_value!($next, $t)),*) };
+    ($next:expr, [ $t:tt ; $len:expr ]) => {
+        (0..$len).map(|_| read_value!($next, $t)).collect::<Vec<_>>()
+    };
+    ($next:expr, usize1) => (read_value!($next, usize) - 1);
+    ($next:expr, $t:ty) => ($next().parse::<$t>().expect("Parse error"));
+}
+
+fn main() {
+    // In order to avoid potential stack overflow, spawn a new thread.
+    let stack_size = 104_857_600; // 100 MB
+    let thd = std::thread::Builder::new().stack_size(stack_size);
+    thd.spawn(|| solve()).unwrap().join().unwrap();
+}
+
+type Dat = (i64 /* depth_delta */, HashMap<i32, (i64, i64)>);
+
+fn unite(mut a: Dat, mut b: Dat) -> (i64, Dat) {
+    if a.1.len() < b.1.len() {
+        std::mem::swap(&mut a, &mut b);
+    }
+    let (ad, mut a) = a;
+    let (bd, b) = b;
+    let mut sum = 0;
+    for (k, v) in b {
+        let ent = a.entry(k).or_insert((0, 0));
+        sum += v.0 * (ent.1 + ad * ent.0);
+        sum += ent.0 * (v.1 + bd * v.0);
+        ent.0 += v.0;
+        ent.1 += v.1 + (bd - ad) * v.0;
+    }
+    (sum, (ad, a))
+}
+
+fn dfs(v: usize, par: usize, g: &[Vec<usize>], a: &[i32]) -> (i64, Dat) {
+    let mut hm = HashMap::new();
+    hm.insert(a[v], (1, 0));
+    let mut hm = (0, hm);
+    let mut sum = 0;
+    for &w in &g[v] {
+        if w == par {
+            continue;
+        }
+        let (subsum, mut sub) = dfs(w, v, g, a);
+        sum += subsum;
+        sub.0 += 1;
+        let (subsum, newhm) = unite(hm, sub);
+        hm = newhm;
+        sum += subsum;
+    }
+    (sum, hm)
+}
+
+fn solve() {
+    input! {
+        n: usize,
+        uv: [(usize1, usize1); n - 1],
+        a: [i32; n],
+    }
+    let mut g = vec![vec![]; n];
+    for &(u, v) in &uv {
+        g[u].push(v);
+        g[v].push(u);
+    }
+    let (sum, _) = dfs(0, n, &g, &a);
+    println!("{}", sum);
+}
diff --git a/atcoder/abc359/remain.txt b/atcoder/abc359/remain.txt
new file mode 100644
index 00000000..18ebd852
--- /dev/null
+++ b/atcoder/abc359/remain.txt
@@ -0,0 +1,2 @@
+c
+d
diff --git a/yukicoder/2772.rs b/yukicoder/2772.rs
new file mode 100644
index 00000000..5a55bca8
--- /dev/null
+++ b/yukicoder/2772.rs
@@ -0,0 +1,32 @@
+fn getline() -> String {
+    let mut ret = String::new();
+    std::io::stdin().read_line(&mut ret).ok().unwrap();
+    ret
+}
+
+const MOD: i64 = 998_244_353;
+
+fn main() {
+    let s: Vec<_> = getline().trim().bytes().map(|b| (b - b'0') as usize).collect();
+    let n = s.len();
+    let mut dp = vec![[0; 2]; 1 << 10];
+    for i in 0..n {
+        let mut ep = vec![[0; 2]; 1 << 10];
+        // start
+        for d in 1..if i == 0 { s[0] + 1 } else { 10 } {
+            ep[1 << d][if i == 0 && d == s[0] { 1 } else { 0 }] += 1;
+        }
+        // continue
+        for bits in 0..1 << 10 {
+            for eq in 0..2 {
+                for d in 0..if eq == 1 { s[i] + 1 } else { 10 } {
+                    let neq = if eq == 1 && d == s[i] { 1 } else { 0 };
+                    ep[bits ^ 1 << d][neq] += dp[bits][eq];
+                    ep[bits ^ 1 << d][neq] %= MOD;
+                }
+            }
+        }
+        dp = ep;
+    }
+    println!("{}", (dp[0][0] + dp[0][1]) % MOD);
+}