版权声明：本文为博主原创文章，未经博主允许不得转载。 https://blog.csdn.net/sugarbliss/article/details/89526190
题目链接：https://ac.nowcoder.com/acm/contest/877/A
#include<iostream>
using namespace std;
int T,n,x;
int main()
{
cin >> T;
while(T--)
{
cin >> n;
x = 1;
while(n > x)
n -= x, x++;
cout << char(97+(n-1)%26) << endl;
}
return 0;
}