C11111211113313112113313331333133313331333131211113313331323132233132331111   >>    C1111121111331311211331333133313331333133313121111331333132313223313233111   <<    C11111211113313112113313331333133313331333131211113313331323132233132331113   >>      C11111211113313112113313331333133313331333131211113313331323132233132331112   >>