C11112331333132311331333133313331323133313231131211113313211232311223311   >>    C1111233133313231133133313331333132313331323113121111331321123231122331   <<    C11112331333132311331333133313331323133313231131211113313211232311223313   >>      C11112331333132311331333133313331323133313231131211113313211232311223312   >>