String Repetition

Interview

Time limit1sMemory limit128 MB

Summary
Given repeat count R and string S, output the string formed by repeating each character of S exactly R times in order.
Level

Easy1 of 10

Topics
String, Implementation
Solved
No attempts yet

Problem

You are given a repeat count R and a string S. Build a new string P by repeating each character of S exactly R times from left to right, then print P.

S contains only these characters: 0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ$%*+-./:.

Input

The first line contains the number of test cases T (1 ≤ T ≤ 1,000). Each test case contains a repeat count R (1 ≤ R ≤ 8) and a string S, separated by a space. The length of S is at least 1 and at most 20.

Output

For each test case, print the generated string P on its own line.

Examples1

  1. Example 1

    Input
    2
3 ABC
5 /HTP
    Expected output
    AAABBBCCC
/////HHHHHTTTTTPPPPP