C22121333132313311211113313331333133313331333132211233133313331323212321   >>    C2212133313231331121111331333133313331333133313221123313331333132321232   <<    C22121333132313311211113313331333133313331333132211233133313331323212323   >>      C22121333132313311211113313331333133313331333132211233133313331323212322   >>