C312312111111331312111133133313331322331333133313331323331323132313331123231   >>    C31231211111133131211113313331333132233133313331333132333132313231333112323   <<    C312312111111331312111133133313331322331333133313331323331323132313331123233   >>      C312312111111331312111133133313331322331333133313331323331323132313331123232   >>