C11111333133313232233133313331333133313231313131211113313221313331   >>    C1111133313331323223313331333133313331323131313121111331322131333   <<    C11111333133313232233133313331333133313231313131211113313221313333   >>      C11111333133313232233133313331333133313231313131211113313221313332   >>