C1111121111331311211331333133313331333133313231333133313331312111112323233131   >>    C111112111133131121133133313331333133313331323133313331333131211111232323313   <<    C1111121111331311211331333133313331333133313231333133313331312111112323233133   >>      C1111121111331311211331333133313331333133313231333133313331312111112323233132   >>