C11111333133313232233133313331333132313331323321313331333132112312111221   >>    C1111133313331323223313331333133313231333132332131333133313211231211122   <<    C11111333133313232233133313331333132313331323321313331333132112312111223   >>      C11111333133313232233133313331333132313331323321313331333132112312111222   >>