#include <bits/stdc++.h>
using namespace std;
using ll = long long;

ll coef[7][7], dp[7][401];

int main() {
    int X, Y;
    scanf("%d.%d\n", &X, &Y);
    X = X * 4 + Y / 25;
    dp[0][0] = 1;
    for(int i = 0; i <= 6; i++){
        coef[i][0] = 1;
        for(int j = 1; j <= i; j++) coef[i][j] = coef[i - 1][j - 1] + coef[i - 1][j];
    }
    for(int i = 0; i <= 100; i++){
        for(int j = 5; j >= 0; j--){
            for(int k = min(400, i * j); k >= 0; k--){
                for(int l = j + 1; l <= 6; l++){
                    dp[l][k + (l - j - (j == 0) - (l == 6)) * i] += dp[j][k] * coef[6 - j][l - j];
                }
            }
        }
    }
    cout << dp[6][X] << '\n';
}