C11111333133313232233133313331333133313231312111133132212232132311   >>    C1111133313331323223313331333133313331323131211113313221223213231   <<    C11111333133313232233133313331333133313231312111133132212232132313   >>      C11111333133313232233133313331333133313231312111133132212232132312   >>