CifP_CifI

#include <iostream>
using namespace std;

int main()
{
    int n,m;
    cin>>n>>m;
    if((n%2&&m%2)||((n%2==0)&&(m%2==0)))
       cout<<(n%2==0)+(m%2==0)+(n/10%2==0)+(m/10%2==0);
    if((n%2&&!(m%2))||(!(n%2)&&m%2))
        cout<<(n%2==1)+(m%2==1)+(n/10%2==1)+(m/10%2==1);
    return 0;
}