revert(비교)

		r3 vs r7
1		aXC~~1BtiyV~~o~~XRvpV~~b~~F/MIsf+M~~Z1U~~+QdyUf5eP0W1H4ad~~Du8~~nqFehW~~J~~HaFsDM~~A~~qjDW~~
	1	sKeuajw9u3eRuCWn9amoSASOBx2ebYZUhDEIO3qp44skuNi11YSP8IJrKVX9AUQO