IP Check

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
ll dec(ll z)
{
    bitset<9>bs(to_string(z));
    return bs.to_ulong();
}
int main()
{
    int g,t;
    ll a1,a2,a3,a4,b1,b2,b3,b4;
    scanf("%d",&t);
    for(g=1;g<=t;g++){
        scanf("%lld.%lld.%lld.%lld",&a1,&a2,&a3,&a4);
        scanf("%lld.%lld.%lld.%lld",&b1,&b2,&b3,&b4);
        b1=dec(b1),
        b2=dec(b2),
        b3=dec(b3),
        b4=dec(b4);
        if(a1==b1&&a2==b2&&a3==b3&&a4==b4)
            printf("Case %d: Yes\n",g);
        else printf("Case %d: No\n",g);
    }
    return 0;
}