func twoSum(numbers []int, target int) []int {
    i,j:=0,len(numbers)-1
    sum:=numbers[i] + numbers[j]
    for sum != target {
        if sum < target {
            i++
        }else{
            j--
        }
        sum = numbers[i] + numbers[j]
    }
    return []int{i+1,j+1}
}