Răspuns :
#include <bits/stdc++.h>
using namespace std;
int main()
{
int n; string x, sol;
cin >> n;
for(int i = 1; i <= n; i++)
cin >> x, sol += x[0];
cout << sol << '\n';
}
using namespace std;
int main()
{
int n; string x, sol;
cin >> n;
for(int i = 1; i <= n; i++)
cin >> x, sol += x[0];
cout << sol << '\n';
}