Răspuns :
700=699,698,697,696,695,701,702,703,704,705
900=899,898,897,896,895,901,902,903,904,905
500=499,498,497,496,495,501,502,503,504,505
900=899,898,897,896,895,901,902,903,904,905
500=499,498,497,496,495,501,502,503,504,505