revert(비교)

		r7 vs r2
1		sK~~euajw9u3eRuCW~~n~~9amoSASO~~Bx2ebY~~ZUh~~D~~EIO3q~~p~~44skuNi~~11~~YSP8IJrK~~VX9AUQO
	1	KnBi3KUlWseY7ADHhLp/1bT6HeD1VqOuVPHsSY5dw69nycG0e3Q1THhf++XQv+xv