C11112331333132311331333133313331323132313331211113313113111121   >>    C1111233133313231133133313331333132313231333121111331311311112   <<    C11112331333132311331333133313331323132313331211113313113111123   >>      C11112331333132311331333133313331323132313331211113313113111122   >>