C11112331333132311331333133313331333132313312111133112113122311   >>    C1111233133313231133133313331333133313231331211113311211312231   <<    C11112331333132311331333133313331333132313312111133112113122313   >>      C11112331333132311331333133313331333132313312111133112113122312   >>