#include <bits/stdc++.h>
#include <vector>
#include <iostream>
#include <map>
#include <string>
#include <cmath>
#include <algorithm>
using namespace std;
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
using ll = long long;
using P = pair<int, int>;

int main() {
    
    int count = 0;
    rep(i,32) {
        if(i>=10) {
            int P = i%10 + (i%100)/10;
            if(P == 1) {
                count++;
            }
            else if(P == 3) {
                count++;
            }
            else if(P == 5) {
                count++;
            }
            else if(P == 7) {
                count++;
            }
            else if(P == 8) {
                count++;
            }
            else if(P == 10) {
                count++;
            }
            else if(P == 12) {
                count++;
            }
        }
        else {
            int P = i%10;
            if(P == 1) {
                count++;
            }
            else if(P == 3) {
                count++;
            }
            else if(P == 5) {
                count++;
            }
            else if(P == 7) {
                count++;
            }
            else if(P == 8) {
                count++;
            }
            else if(P == 10) {
                count++;
            }
            else if(P == 12) {
                count++;
            }
        }
    }
    rep(i,31) {
        if(i>=10) {
            int P = i%10 + (i%100)/10;
            if(P == 1) {
                count++;
            }
            else if(P == 3) {
                count++;
            }
            else if(P == 5) {
                count++;
            }
            else if(P == 7) {
                count++;
            }
            else if(P == 8) {
                count++;
            }
            else if(P == 10) {
                count++;
            }
            else if(P == 12) {
                count++;
            }
        }
        else {
            int P = i%10;
            if(P == 1) {
                count++;
            }
            else if(P == 3) {
                count++;
            }
            else if(P == 5) {
                count++;
            }
            else if(P == 7) {
                count++;
            }
            else if(P == 8) {
                count++;
            }
            else if(P == 10) {
                count++;
            }
            else if(P == 12) {
                count++;
            }
        }
    }
    
    cout << count << endl;
    
}