C11112331333132311331333133313331333132313121111331312111112131232131   >>    C1111233133313231133133313331333133313231312111133131211111213123213   <<    C11112331333132311331333133313331333132313121111331312111112131232133   >>      C11112331333132311331333133313331333132313121111331312111112131232132   >>