C1111133313331323223313331333133313113313231333132212111111321111   >>    C111113331333132322331333133313331311331323133313221211111132111   <<    C1111133313331323223313331333133313113313231333132212111111321113   >>      C1111133313331323223313331333133313113313231333132212111111321112   >>