C22121333132313311211113313331333133313331333132322331323212321   >>    C2212133313231331121111331333133313331333133313232233132321232   <<    C22121333132313311211113313331333133313331333132322331323212323   >>      C22121333132313311211113313331333133313331333132322331323212322   >>