revert(비교)

		r4 vs r10
1		~~c8u4~~q~~PYzZ3~~QT~~IJI~~ZV~~nKgDbqAo/AssnLtJRmTS3~~7~~gdlu3Y4Irt0~~2~~4XL~~JdpXwW~~drK7~~
	1	10bOdqDQaT3Z0Vx72P9NUUJyZxWJxxHvaZWDQdi/XfcMfeWaYH3/aB90xLCzDzVA