C11111333133313232233133313331333132313331323133313331312111133133313332233311   >>    C1111133313331323223313331333133313231333132313331333131211113313331333223331   <<    C11111333133313232233133313331333132313331323133313331312111133133313332233313   >>      C11111333133313232233133313331333132313331323133313331312111133133313332233312   >>