C313212111133131211331333133313331333133313331323331333132313331121   >>    C31321211113313121133133313331333133313331333132333133313231333112   <<    C313212111133131211331333133313331333133313331323331333132313331123   >>      C313212111133131211331333133313331333133313331323331333132313331122   >>