C22121333132313311211113313331333132233131133133313331323221333132232221   >>    C2212133313231331121111331333133313223313113313331333132322133313223222   <<    C22121333132313311211113313331333132233131133133313331323221333132232223   >>      C22121333132313311211113313331333132233131133133313331323221333132232222   >>