fn value(i: i32) -> i32 raises [Odd] {
    if i % 2 == 0 {
        return i
    }
    raise Odd
}

pub fn main(world: World) -> Void raises {
    var i: i32 = 0
    var total: i32 = 0
    while i < 50000 {
        let item: i32 = rescue value(i) err 1
        total = total + item
        i = i + 1
    }
    if total > 0 {
        check world.out.write("fallibility\n")
    }
}