C11111333133313232233133313331333133313231312111113113313232123313331313311   >>    C1111133313331323223313331333133313331323131211111311331323212331333131331   <<    C11111333133313232233133313331333133313231312111113113313232123313331313313   >>      C11111333133313232233133313331333133313231312111113113313232123313331313312   >>