C1111233131211111211113313331323133313231121211113313331333133322332132321   >>    C111123313121111121111331333132313331323112121111331333133313332233213232   <<    C1111233131211111211113313331323133313231121211113313331333133322332132323   >>      C1111233131211111211113313331323133313231121211113313331333133322332132322   >>