#include<iostream> #include<string> #include<cmath> #include<cstring> #include<iomanip> #include<cstdio> #include<algorithm> #include<ctype.h> using namespace std; int main() { int n; string s; while (cin >> n) { cin >> s; int len = s.size(); for (int i = 0;i < len;i++) { if (isalpha(s[i])) { cout << s[i]; } } cout << endl; } } |
Double click to view unformatted code.