#include <cstdio>
#include <cstring>
using namespace std;
FILE* fin=freopen("date.in","r",stdin);
FILE* fout=freopen("date.out","w",stdout);
int lg,uz[10];
char nr[15];
int main()
{
    int i;
    scanf("%s",nr);
    /*lg=strlen(nr);
    for (i=2; i<lg; i++)
    {
        uz[nr[i]-'0']++;
    }*/
    printf("73\n");
}