#include <iostream> using namespace std; int main(){ long long a,b,c,m=0; cin>>a>>b>>c; if(((a%4==0)||(a%100==0))&&((a%4==0)!=(a%100==0))||a%400==0) { m+=1; }else{ m+=0; } if(((b%4==0)||(b%100==0))&&((b%4==0)!=(b%100==0))||b%400==0) { m+=1; }else{ m+=0; } if(((c%4==0)||(c%100==0))&&((c%4==0)!=(c%100==0))||c%400==0) { m+=1; }else{ m+=0; } cout<<m<<endl; return 0; }