C11112331312111112111133133313331333131333132311331322113121121   >>    C1111233131211111211113313331333133313133313231133132211312112   <<    C11112331312111112111133133313331333131333132311331322113121123   >>      C11112331312111112111133133313331333131333132311331322113121122   >>