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