C11112331333132311331333131333133313231331121111331323133323231   >>    C1111233133313231133133313133313331323133112111133132313332323   <<    C11112331333132311331333131333133313231331121111331323133323233   >>      C11112331333132311331333131333133313231331121111331323133323232   >>