C1111233131211111211113313331333133313331333133313331333133313113213231323131   >>    C111123313121111121111331333133313331333133313331333133313331311321323132313   <<    C1111233131211111211113313331333133313331333133313331333133313113213231323133   >>      C1111233131211111211113313331333133313331333133313331333133313113213231323132   >>