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Q2591.java
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Q2591.java
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package olympiad;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
public class Q2591 {
public static void main(String[] args) throws IOException {
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
String number = br.readLine();
int len = number.length();
int numbers[] = new int[len + 1];
int dp[] = new int[len + 1];
dp[0] = 1;
for (int i = 1; i <= len; i++) {
numbers[i] = number.charAt(i - 1) - '0';
if(numbers[i] > 0) dp[i] += dp[i - 1];
if(numbers[i] + numbers[i - 1] * 10 >= 10 && numbers[i] + numbers[i - 1] * 10 <= 34) dp[i] += dp[i - 2];
}
bw.write(dp[len] + "\n");
br.close();
bw.close();
}
}