C11112331312111112111133133313331311331323223323133313231311331323222331   >>    C1111233131211111211113313331333131133132322332313331323131133132322233   <<    C11112331312111112111133133313331311331323223323133313231311331323222333   >>      C11112331312111112111133133313331311331323223323133313231311331323222332   >>