5,6,7,8,

8,6,7,5,( ) ( ) 5,6,7,8, 5 6 7 8 5,6,7,8, 5,6,7,8, 5 6 7 8 5,6,7,8, 5,6,7,8, 5 6 7 8 5 6 7 8 5 6 7 8 5,6,7,8, 5,6,7,8, 5,6,7,8 5 6 7 8 5,6,7,8 5 6 7 8 5 6 7 8