C1111133313331323223313331333133313331333132212111111331323232311   >>    C111113331333132322331333133313331333133313221211111133132323231   <<    C1111133313331323223313331333133313331333132212111111331323232313   >>      C1111133313331323223313331333133313331333132212111111331323232312   >>