Răspuns :
Presupun ca sunt probleme de multimi. Solutiile sunt urmatoarele:
1) {877,878,879,880,881,882,883,884,885,886;
2) {293,294,295,296,297,298,299,300,301,302};
3) {798,799,800,801,802,803,804,805}
1) {877,878,879,880,881,882,883,884,885,886;2) {293,294,295,296,297,298,299,300,301,302};3) {798,799,800,801,802,803,804,805}