C11112331333132311331333133313231333131133131211113313221121133133313332211   >>    C1111233133313231133133313331323133313113313121111331322112113313331333221   <<    C11112331333132311331333133313231333131133131211113313221121133133313332213   >>      C11112331333132311331333133313231333131133131211113313221121133133313332212   >>