revert(비교)

		r30 vs r31
1		iG7u~~gbDO/WJ~~d~~w316z~~D7HI~~wC8W7+5lYZ3E~~R~~hs8~~y~~6KfN3~~Ljzt~~/csCWzCH~~tG~~f7P6L~~Sh
	1	f4Ea572ucBoPjKldemKBxi4xFU+DRIdRGkS/n9OMTyLgttGT1XS27ewgVTK0ruxb