C11111211113313112113313331333133313331333132313331333133313332231133121   >>    C1111121111331311211331333133313331333133313231333133313331333223113312   <<    C11111211113313112113313331333133313331333132313331333133313332231133123   >>      C11111211113313112113313331333133313331333132313331333133313332231133122   >>