C11112331333132311331333133313231333131133131211111121133132211111   >>    C1111233133313231133133313331323133313113313121111112113313221111   <<    C11112331333132311331333133313231333131133131211111121133132211113   >>      C11112331333132311331333133313231333131133131211111121133132211112   >>