C1111133313331323223313331333133313331323131232233132313231121123231   >>    C111113331333132322331333133313331333132313123223313231323112112323   <<    C1111133313331323223313331333133313331323131232233132313231121123233   >>      C1111133313331323223313331333133313331323131232233132313231121123232   >>