#include <stdio.h> #include <string.h> int main(void){ int N = 0; int i = 0; char S[10][21] = {""}; char hoge[210] = ""; scanf("%d", &N); for(i=0;i<N;i++){ scanf("%s",S[i]); strcat(hoge,S[i]); } printf("%s\n",hoge); return 0; }