inc   uint32
}

func (ord *randomOrder) reset(count uint32) {
	ord.count = count
	ord.coprimes = ord.coprimes[:0]
	for i := uint32(1); i <= count; i++ {
		if gcd(i, count) == 1 {
			ord.coprimes = append(ord.coprimes, i)
		}
	}
}

func (ord *randomOrder) start(i uint32) randomEnum {
	return randomEnum{
		count: ord.count,
		pos:   i % ord.count,