package main


func test(v int) int {
    var a = 0
    switch v {
    default:
        a = 4
    case 100:
        a += 1
    case 200:
        a += 2
    }
    return a
}

func test2(v int) int {
    var a = 0
    switch v += 1; v {
    case 100, 101, 102:
        a += 1
        fallthrough
    case 200:
        a += 2
    default:
        a = 4
    }
    return a
}

func main() {
    assert(test(100) == 1)
    assert(test(200) == 2)
    assert(test(201) == 4)
    assert(test2(99) == 3)
    assert(test2(100) == 3)
    assert(test2(101) == 3)
    assert(test2(199) == 2)
    assert(test2(201) == 4)
}