C11111333133313232233133313331333131133132313331322121111131113331311321   >>    C1111133313331323223313331333133313113313231333132212111113111333131132   <<    C11111333133313232233133313331333131133132313331322121111131113331311323   >>      C11111333133313232233133313331333131133132313331322121111131113331311322   >>