买书

#include <iostream>
#include <cstdio>
using namespace std;
//Mystery_Sky
//
#define ll long long
#define M 10000
int v, m;
ll c[M], f[M];
int main() {
    scanf("%d", &v);
    c[1] = 10, c[2] = 20, c[3] = 50, c[4] = 100;
    f[0] = 1;
    if(v == 0) {
        printf("0\n");
        return 0;
    }
    for(int i = 1; i <= 4; i++)
        for(int j = c[i]; j <= v; j++)
            f[j] += f[j-c[i]];
    printf("%lld\n", f[v]);
    return 0;
}