C1111133313331323223313331333133313113313231333133313221121232233131   >>    C111113331333132322331333133313331311331323133313331322112123223313   <<    C1111133313331323223313331333133313113313231333133313221121232233133   >>      C1111133313331323223313331333133313113313231333133313221121232233132   >>