For problem statement at 1000-1999/1000-1099/1000-1009/1004/problemB.txt this is a correct solution, but verifier at 1000-1999/1000-1099/1000-1009/1004/verifierB.go ends with All 100 tests passed can you fix the verifier? ```go
package main

import (
    "fmt"
)

func main() {
    var n, m int
    fmt.Scan(&n, &m)
    
    for i := 0; i < m; i++ {
        var l, r int
        fmt.Scan(&l, &r)
    }
    
    result := make([]byte, n)
    for i := 0; i < n; i++ {
        if i%2 == 0 {
            result[i] = '0'
        } else {
            result[i] = '1'
        }
    }
    fmt.Println(string(result))
}
```