C1111233133313231133133313331333133313231121333133313331323233231121133222321   >>    C111123313331323113313331333133313331323112133313331333132323323112113322232   <<    C1111233133313231133133313331333133313231121333133313331323233231121133222323   >>      C1111233133313231133133313331333133313231121333133313331323233231121133222322   >>