C1111133313331323223313331333133313311211111211331323221333132313311   >>    C111113331333132322331333133313331331121111121133132322133313231331   <<    C1111133313331323223313331333133313311211111211331323221333132313313   >>      C1111133313331323223313331333133313311211111211331323221333132313312   >>