C11112331333132311331333133313331323133313231131211113313221323111   >>    C1111233133313231133133313331333132313331323113121111331322132311   <<    C11112331333132311331333133313331323133313231131211113313221323113   >>      C11112331333132311331333133313331323133313231131211113313221323112   >>