C22121333132313311211113313331333132233131133133313331323233321   >>    C2212133313231331121111331333133313223313113313331333132323332   <<    C22121333132313311211113313331333132233131133133313331323233323   >>      C22121333132313311211113313331333132233131133133313331323233322   >>