#include<iostream> #include<cstdio> using namespace std; int main(){ int x,y,z,a; a=0; cin>>x>>y>>z; if(((x%4==0)&&(x%100!=0))||(x%400==0)){ a=a+1; } if(((y%4==0)&&(y%100!=0))||(y%400==0)){ a=a+1; } if(((z%4==0)&&(z%100!=0))||(z%400==0)){ a=a+1; } cout<<a; }