C22121333132313311211113313331333132233131133133313331322333221   >>    C2212133313231331121111331333133313223313113313331333132233322   <<    C22121333132313311211113313331333132233131133133313331322333223   >>      C22121333132313311211113313331333132233131133133313331322333222   >>