C1111233131211111211113313331333133313331333133313331333132313121133131   >>    C111123313121111121111331333133313331333133313331333133313231312113313   <<    C1111233131211111211113313331333133313331333133313331333132313121133133   >>      C1111233131211111211113313331333133313331333133313331333132313121133132   >>