f(r0:int, r1:int, r2:int, r3:int, r4:int, r5:int, r6:int):int
{
    return r0 + r1 + r2 + r3 + r4 + r5 + r6
}

main():int {
    return f(1, 2, 3, 4, 5, 6, 7)
}

//@PRACOWNIA
//@out Exit code: 28