C1111121111331311211331333133313331333133313221211113313331333132313111232321   >>    C111112111133131121133133313331333133313331322121111331333133313231311123232   <<    C1111121111331311211331333133313331333133313221211113313331333132313111232323   >>      C1111121111331311211331333133313331333133313221211113313331333132313111232322   >>