For problem statement at 1000-1999/1600-1699/1600-1609/1606/problemA.txt this is a correct solution, but verifier at 1000-1999/1600-1699/1600-1609/1606/verifierA.go ends with case 1 failed: expected abaabbabbbbbbaaababaaabbabbababa
aaaababbaaababbaaabbaaabbbabbaababaaaababbbbbabbaaabbbbabaaabaaabbbabaa
babbbbbbaaabaabbabbaabbabbaaabbaaabbbbbabbaabbbaabbaabbbbaaababaabaabbbaabababbbbabaabbaab
bbbbbabaaaabbbbbbababbbabbababaabaabbbbababbbbaabbaabaaaaabbab got abaabbabbbbbbaaababaaabbabbababa
aaaababbaaababbaaabbaaabbbabbaababaaaababbbbbabbaaabbbbabaaabaaabbbabaa
babbbbbbaaabaabbabbaabbabbaaabbaaabbbbbabbaabbbaabbaabbbbaaababaabaabbbaabababbbbabaabbaab
abbbbabaaaabbbbbbababbbabbababaabaabbbbababbbbaabbaabaaaaabbaa
input:
4
abaabbabbbbbbaaababaaabbabbababa
aaaababbaaababbaaabbaaabbbabbaababaaaababbbbbabbaaabbbbabaaabaaabbbabaa
babbbbbbaaabaabbabbaabbabbaaabbaaabbbbbabbaabbbaabbaabbbbaaababaabaabbbaabababbbbabaabbaab
bbbbbabaaaabbbbbbababbbabbababaabaabbbbababbbbaabbaabaaaaabbaa
exit status 1 can you fix the verifier? package main

import (
	"bufio"
	"fmt"
	"os"
)

func main() {
	in := bufio.NewReaderSize(os.Stdin, 1<<20)
	out := bufio.NewWriterSize(os.Stdout, 1<<20)
	defer out.Flush()

	var t int
	fmt.Fscan(in, &t)
	for ; t > 0; t-- {
		var s string
		fmt.Fscan(in, &s)
		b := []byte(s)
		n := len(b)
		if b[0] != b[n-1] {
			b[0] = b[n-1]
		}
		fmt.Fprintln(out, string(b))
	}
}