C11112331333132311331333131333133313231331121111331323133313133313211   >>    C1111233133313231133133313133313331323133112111133132313331313331321   <<    C11112331333132311331333131333133313231331121111331323133313133313213   >>      C11112331333132311331333131333133313231331121111331323133313133313212   >>