C11111333133313232233133313331333133313223313331323132233133313331121132211   >>    C1111133313331323223313331333133313331322331333132313223313331333112113221   <<    C11111333133313232233133313331333133313223313331323132233133313331121132213   >>      C11111333133313232233133313331333133313223313331323132233133313331121132212   >>