C11112331333132311331333133313231333131133131211113313231333131133132221   >>    C1111233133313231133133313331323133313113313121111331323133313113313222   <<    C11112331333132311331333133313231333131133131211113313231333131133132223   >>      C11112331333132311331333133313231333131133131211113313231333131133132222   >>