C111123313331323113313331333133313331323131211111133132311223131   >>    C11112331333132311331333133313331333132313121111113313231122313   <<    C111123313331323113313331333133313331323131211111133132311223133   >>      C111123313331323113313331333133313331323131211111133132311223132   >>