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