t = int(input())
for _ in range(t):
n = int(input())
a = [ i for i in input()]
print(ord(max(a)) - 96)// Online C++ compiler to run C++ program online
#include <bits/stdc++.h>
using namespace std;
int main()
{
// Write C++ code here
int t,n;
string s;
cin>>t;
char l;
while(t--)
{
cin>>n>>s;
sort(s.begin(), s.end());
l = tolower(s.back());
//cout<<int(l)<<endl;
cout<<int(l) -96<<endl;
}
return 0;
}766A - Mahmoud and Longest Uncommon Subsequence | 701B - Cells Not Under Attack |
702A - Maximum Increase | 1656D - K-good |
1426A - Floor Number | 876A - Trip For Meal |
1326B - Maximums | 1635C - Differential Sorting |
961A - Tetris | 1635B - Avoid Local Maximums |
20A - BerOS file system | 1637A - Sorting Parts |
509A - Maximum in Table | 1647C - Madoka and Childish Pranks |
689B - Mike and Shortcuts | 379B - New Year Present |
1498A - GCD Sum | 1277C - As Simple as One and Two |
1301A - Three Strings | 460A - Vasya and Socks |
1624C - Division by Two and Permutation | 1288A - Deadline |
1617A - Forbidden Subsequence | 914A - Perfect Squares |
873D - Merge Sort | 1251A - Broken Keyboard |
463B - Caisa and Pylons | 584A - Olesya and Rodion |
799A - Carrot Cakes | 1569B - Chess Tournament |