For problem statement at 1000-1999/1400-1499/1400-1409/1400/problemA.txt this is a correct solution, but verifier at 1000-1999/1400-1499/1400-1409/1400/verifierA.go ends with All 100 tests passed can you fix the verifier? package main

import (
	"bufio"
	"bytes"
	"fmt"
	"os"
	"strings"
)

func main() {
	in := bufio.NewReader(os.Stdin)
	var out bytes.Buffer

	var t int
	fmt.Fscan(in, &t)
	for ; t > 0; t-- {
		var n int
		var s string
		fmt.Fscan(in, &n, &s)

		cnt0 := 0
		for i := 0; i < len(s); i++ {
			if s[i] == '0' {
				cnt0++
			}
		}

		ch := '1'
		if cnt0 >= n {
			ch = '0'
		}

		out.WriteString(strings.Repeat(string(ch), n))
		if t > 0 {
			out.WriteByte('\n')
		}
	}

	fmt.Print(out.String())
}