C1111233131211111211113313331333133313232321333133313331331121121323131   >>    C111123313121111121111331333133313331323232133313331333133112112132313   <<    C1111233131211111211113313331333133313232321333133313331331121121323133   >>      C1111233131211111211113313331333133313232321333133313331331121121323132   >>