C11112331333132311331333133313331323133313231131211113313331323221131211   >>    C1111233133313231133133313331333132313331323113121111331333132322113121   <<    C11112331333132311331333133313331323133313231131211113313331323221131213   >>      C11112331333132311331333133313331323133313231131211113313331323221131212   >>