C1111233131211111211113313331323133313231121211113313331333132112323213311   >>    C111123313121111121111331333132313331323112121111331333133313211232321331   <<    C1111233131211111211113313331323133313231121211113313331333132112323213313   >>      C1111233131211111211113313331323133313231121211113313331333132112323213312   >>