#include<iostream>
using namespace std;
int n;
char str=' ',a,b;
int main()
{
	//GG
	cin>>n;
	getchar();
	for (int i=0;i<n;i++)
	{
		a=getchar();getchar();
		b=getchar();getchar();
		cout<<a-48+b-48<<endl; 
	}
	return 0;
}