C11111211113313112113313331333133313231121131211113313331333132233112131   >>    C1111121111331311211331333133313331323112113121111331333133313223311213   <<    C11111211113313112113313331333133313231121131211113313331333132233112133   >>      C11111211113313112113313331333133313231121131211113313331333132233112132   >>