#include<iostream> // cin\cout\endl #include<cstdio> //scanf()\printf() #include<cstring> // strcpy()\strcat()\strcmp()\strlen()\memset() #include<cmath> //sqrt()\pow()\abs()\ceil()\floor()\max()\min() using namespace std; int main(){ int a,s,d,tyui; tyui=0; cin>>a>>s>>d; if((a%4==0)&&(a%100!=0)||(a%400==0)){ tyui++; } if((s%4==0)&&(s%100!=0)||(s%400==0)){ tyui++; } if((d%4==0)&&(d%100!=0)||(d%400==0)){ tyui++; } cout<<tyui; return 0; }