For problem statement at 0-999/400-499/490-499/495/problemA.txt this is a correct solution, but verifier at 0-999/400-499/490-499/495/verifierA.go ends with All 100 tests passed can you fix the verifier? package main

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

func main() {
	in := bufio.NewReader(os.Stdin)
	var s string
	fmt.Fscan(in, &s)

	mask := []int{
		0x3F,
		0x06,
		0x5B,
		0x4F,
		0x66,
		0x6D,
		0x7D,
		0x07,
		0x7F,
		0x6F,
	}

	d0 := int(s[0] - '0')
	d1 := int(s[1] - '0')

	ans := 0
	for x := 0; x < 100; x++ {
		a := x / 10
		b := x % 10
		if (mask[d0]&^mask[a]) == 0 && (mask[d1]&^mask[b]) == 0 {
			ans++
		}
	}

	fmt.Println(ans)
}