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......................................ex 8

Ex 8 class=

Răspuns :

a apartine de {0,1,2,3,4,5,6,7,8,9}
b apartine de {0,1,2,3,4,5,6,7,8,9}
=>300,301,302,303,304,305,306,307,308,309....399
de la 300 până la 399
399-300=99 numere