Răspuns :
397 ≤ a <408
a=397,398,399,400,401,402,403,404,405,406,407
749 < a ≤ 755
a=750,751,752,753,754,755
a=397,398,399,400,401,402,403,404,405,406,407
749 < a ≤ 755
a=750,751,752,753,754,755
397 ≤ a <408
a = 397,398,399,400,401,402,403,404,405,406,407
749 < a ≤ 755
a = 750,751,752,753,754,755
a = 397,398,399,400,401,402,403,404,405,406,407
749 < a ≤ 755
a = 750,751,752,753,754,755