C11111333133313232233133313331333132313331323321313331311331313332211   >>    C1111133313331323223313331333133313231333132332131333131133131333221   <<    C11111333133313232233133313331333132313331323321313331311331313332213   >>      C11111333133313232233133313331333132313331323321313331311331313332212   >>