C11111211113313112113313331333133313331333131211113313331323132233131332311   >>    C1111121111331311211331333133313331333133313121111331333132313223313133231   <<    C11111211113313112113313331333133313331333131211113313331323132233131332313   >>      C11111211113313112113313331333133313331333131211113313331323132233131332312   >>