For problem statement at 1000-1999/1200-1299/1230-1239/1239/problemA.txt this is a correct solution, but verifier at 1000-1999/1200-1299/1230-1239/1239/verifierA.go ends with All tests passed can you fix the verifier? ```go
package main

import (
    "fmt"
)

func main() {
    var n, m int
    fmt.Scan(&n, &m)

    const MOD int64 = 1000000007

    maxVal := n
    if m > n {
        maxVal = m
    }
    maxVal += 2

    fib := make([]int64, maxVal+1)
    fib[0] = 0
    fib[1] = 1
    for i := 2; i <= maxVal; i++ {
        fib[i] = (fib[i-1] + fib[i-2]) % MOD
    }

    ans := (2 * (fib[n+1] + fib[m+1] - 1)) % MOD
    if ans < 0 {
        ans += MOD
    }
    fmt.Println(ans)
}
```