#include<bits/stdc++.h> using namespace std; int main(){ int a,b,c,n=0; cin>>a>>b>>c; if(a%400==0){ n=n+1; }else{ if(a%100!=0 and a%4==0){ n=n+1; }else{ n=n; } } if(b%400==0){ n=n+1; }else{ if(b%100!=0 and b%4==0){ n=n+1; }else{ n=n; } } if(c%400==0){ n=n+1; }else{ if(c%100!=0 and c%4==0){ n=n+1; }else{ n=n; } } cout<<n; return 0; }