C1111233133313231133133313331333133313231121333133313331323221333132313221   >>    C111123313331323113313331333133313331323112133313331333132322133313231322   <<    C1111233133313231133133313331333133313231121333133313331323221333132313223   >>      C1111233133313231133133313331333133313231121333133313331323221333132313222   >>