C11112331333132311331333132313331333131133131133133313311211111213211131   >>    C1111233133313231133133313231333133313113313113313331331121111121321113   <<    C11112331333132311331333132313331333131133131133133313311211111213211133   >>      C11112331333132311331333132313331333131133131133133313311211111213211132   >>