C11111333133313232233133313331333133313231312111133131123311131   >>    C1111133313331323223313331333133313331323131211113313112331113   <<    C11111333133313232233133313331333133313231312111133131123311133   >>      C11111333133313232233133313331333133313231312111133131123311132   >>