C11111333133313232233133313331333133313231312111113113313231321123131   >>    C1111133313331323223313331333133313331323131211111311331323132112313   <<    C11111333133313232233133313331333133313231312111113113313231321123133   >>      C11111333133313232233133313331333133313231312111113113313231321123132   >>