#include<iostream>
#include
using namespace std;
int main(){
    int a;
    string b[20][20];
    for(int i = 0;i<=a;i++){
        for(int j = 0;j<=a;j++){
            cin>>b[i][j];
        }
    }
    for(int i = 0;i<=a;i++){
        for(int j = 0;j<=a;j++){
            cout<<b[i]<<":"<<b[j];
        }
    }
}