C11111211113313112113313331333131211113313331311211331333133313331323132233131   >>    C1111121111331311211331333133313121111331333131121133133313331333132313223313   <<    C11111211113313112113313331333131211113313331311211331333133313331323132233133   >>      C11111211113313112113313331333131211113313331311211331333133313331323132233132   >>