C11111333133313232233133313331333133313231333133313113313332232113322131   >>    C1111133313331323223313331333133313331323133313331311331333223211332213   <<    C11111333133313232233133313331333133313231333133313113313332232113322133   >>      C11111333133313232233133313331333133313231333133313113313332232113322132   >>