pub fn main(world: World) -> Void raises {
    let view: Span<u8> = "zero-slices"[5..11]
    var i: i32 = 0
    var total: usize = 0
    while i < 50000 {
        if view[0] == 115 as u8 && view[5] == 115 as u8 {
            total = total + std.mem.len(view)
        }
        i = i + 1
    }
    if total == 300000 {
        check world.out.write("slices\n")
    }
}