C11111333133313232233133313331333133313331233132313331323223312111   >>    C1111133313331323223313331333133313331333123313231333132322331211   <<    C11111333133313232233133313331333133313331233132313331323223312113   >>      C11111333133313232233133313331333133313331233132313331323223312112   >>