#include <bits/stdc++.h>

using namespace std;

int main()
{
int a[] = {5,6,8,6,9,1,6,1,2,4,9,1,9,8,2,3,6,4,7,7,5,9,5,0,3,8,7,5,8,1,5,8,6,1,8,3,0,3,7,9,2,
7,0,5,8,8,5,7,0,9,9,1,9,4,4,6,8,6,3,3,8,5,1,6,3,4,6,7,0,7,8,2,7,6,8,9,5,6,5,6,1,4,0,1,
0,0,9,4,8,0,9,1,2,8,5,0,2,5,3,3};
int ans = 0;
int day1[13] = {0,31,28,31,30,31,30,31,31,30,31,30,31};

for(int moth = 1; moth <= 12; moth ++ )
for(int day = 1; day <= day1[moth]; day ++ ) {
int da[] = {2, 0, 2, 3, moth / 10, moth % 10, day / 10, day % 10};
int k = 0;
for(int i = 0; i < 100; i ++ ) {
if(a[i] == da[k])
k ++ ;
if(k == 8) {
ans ++ ;
break;
}
}
}
cout << ans << endl;

}