C11111333133313232233133313331333133313231312111133131123313331121131331   >>    C1111133313331323223313331333133313331323131211113313112331333112113133   <<    C11111333133313232233133313331333133313231312111133131123313331121131333   >>      C11111333133313232233133313331333133313231312111133131123313331121131332   >>