C11112331333132311331333133313331323132313331211113313133313232111321   >>    C1111233133313231133133313331333132313231333121111331313331323211132   <<    C11112331333132311331333133313331323132313331211113313133313232111323   >>      C11112331333132311331333133313331323132313331211113313133313232111322   >>