revert(비교)

		r4 vs r7
1		c8u~~4qPYzZ~~3~~QTIJIZV~~n~~KgDbqA~~o/A~~ssnLtJRmT~~S3~~7gdl~~u3Y4I~~rt024XL~~J~~dpXwWd~~rK7
	1	sKeuajw9u3eRuCWn9amoSASOBx2ebYZUhDEIO3qp44skuNi11YSP8IJrKVX9AUQO