文件目录

#include <iostream>
using namespace std;
int main()
{
    int n;
    string s;
    cin >> n;
    while (n--)
    {
        cin >> s;
        if (s[0] >= 97 && s[0] <= 122)
            s[0] -= 32;
        for (int i = 1; s[i]; i++)
            if (s[i] >= 65 && s[i] <= 90)
                s[i] += 32;
        cout << s << endl;
    }
    return 0;
}