C11112331333132311331333133313331333132313311213231333131232211   >>    C1111233133313231133133313331333133313231331121323133313123221   <<    C11112331333132311331333133313331333132313311213231333131232213   >>      C11112331333132311331333133313331333132313311213231333131232212   >>