mix_排球_模拟

//
#include<bits/stdc++.h>
using namespace std;

int main()
{
    int op,x,sum1,sum2,f1,f2;

    sum1=sum2=f1=f2=0;
    while( cin>>op>>x )
    {
        if( op==1 )         sum1+=x;
        else if( op==2 )    sum2+=x;

        if( sum1==25 && sum1-sum2>=2 || sum1-sum2>=2 && sum2>=24 )
        {
            cout<<sum1<<":"<<sum2<<endl;
            sum1=sum2=0;
            f1++;
        }
        else if( sum2==25 && sum2-sum1>=2 || sum2-sum1>=2 && sum1>=24 )
        {
            cout<<sum1<<":"<<sum2<<endl;
            sum1=sum2=0;
            f2++;
        }
        if( f1+f2==3 ) break;
    }
    cout<<( f1 > f2 ? "1":"2" )<<endl;
    return 0;
}