For problem statement at 0-999/700-799/770-779/776/problemA.txt this is a correct solution, but verifier at 0-999/700-799/770-779/776/verifierA.go ends with All tests passed. can you fix the verifier? ```go
package main

import "fmt"

func main() {
	var p1, p2 string
	fmt.Scan(&p1, &p2)
	fmt.Println(p1, p2)

	var n int
	fmt.Scan(&n)

	for i := 0; i < n; i++ {
		var m, r string
		fmt.Scan(&m, &r)
		if m == p1 {
			p1 = r
		} else {
			p2 = r
		}
		fmt.Println(p1, p2)
	}
}
```