C11111333133313232233133313331333133313231312323132321123231321   >>    C1111133313331323223313331333133313331323131232313232112323132   <<    C11111333133313232233133313331333133313231312323132321123231323   >>      C11111333133313232233133313331333133313231312323132321123231322   >>