C1111233133313231133133313331333133313231121333133313331311213112331   >>    C111123313331323113313331333133313331323112133313331333131121311233   <<    C1111233133313231133133313331333133313231121333133313331311213112333   >>      C1111233133313231133133313331333133313231121333133313331311213112332   >>