#include <bits/stdc++.h>
using namespace std;
int main()
{
	int d[14];
	int l=0;
	int i=0;
	int b=0;
	int k=0;
	int h=0;
	int u=0;
	int day[7];
	int suc[7];
	int day9[7];
	while(i<14)
	{
		cin>>b;
		d[i]=b;
		i++;
	}
	for(int o=0;o<14;o=o+2)
	{
		l++;
		if(d[o]+d[o+1]>=9)
		{
			day[l]=d[o]+d[o+1];
			suc[l]=d[o]+d[o+1];
			day9[l]=l;
			h++;
		}
		else{
			day[l]=0;
			day9[l]=0;
		}

	}

	if((suc[u]==suc[u+1]&&suc[u]!=0)||(suc[u]==suc[u+2]&&suc[u]!=0)||(suc[u]==suc[u+3]&&suc[u]!=0)||(suc[u]==suc[u+4]&&suc[u]!=0)||(suc[u]==suc[u+5]&&suc[u]!=0)||(suc[u]==suc[u+6]&&suc[u]!=0))
	{
		cout<<day9[u];
	}
	if((suc[u+1]==suc[u+2]&&suc[u+1]!=0)||(suc[u+1]==suc[u+3]&&suc[u+1]!=0)||(suc[u+1]==suc[u+4]&&suc[u+1]!=0)||(suc[u+1]==suc[u+5]&&suc[u+1]!=0)||(suc[u+1]==suc[u+6]&&suc[u+1]!=0))
	{
		cout<<day9[u+10];
	}
	if((suc[u+2]==suc[u+3]&&suc[u+2]!=0)||(suc[u+2]==suc[u+4]&&suc[u+2]!=0)||(suc[u+2]==suc[u+5]&&suc[u+2]!=0)||(suc[u+2]==suc[u+6]&&suc[u+2]!=0))
	{
		cout<<day9[u+2];
	}
	if((suc[u+3]==suc[u+4]&&suc[u+3]!=0)||(suc[u+3]==suc[u+5]&&suc[u+3]!=0)||(suc[u+3]==suc[u+6]&&suc[u+3]!=0))
	{
		cout<<day9[u+3];
	}
	if((suc[u+4]==suc[u+5]&&suc[u+4]!=0)||(suc[u+4]==suc[u+6]&&suc[u+4]!=0))
	{
		cout<<day9[u+4];
	}
	if((suc[u+5]==suc[u+6]&&suc[u+5]!=0))
	{
		cout<<day9[u+5];
	}

	return 0;
}