C11111333133313232233133313331333132313231121133131221323131221   >>    C1111133313331323223313331333133313231323112113313122132313122   <<    C11111333133313232233133313331333132313231121133131221323131223   >>      C11111333133313232233133313331333132313231121133131221323131222   >>