Răspuns :
Nr sunt:100,122,133,144,155,166,177,188,199
200,211,233,244,255,266,277,288,299
300,311,322,344,355,366,377,388,399
400,411,422,433,455,466,477,488,499
500,511,522,533,544,566,577,588,599
600,611,622,633,644,655,677,688,699
700,711,722,733,744,755,766,788,799
800,811,822,833,844,855,866,877,899
900,911,922,933,944,955,966,977,988
110,112,113,114,115,116,117,118,119
220,221,223,224,225,226,227,228,229
330,311,322,344,355,366,377,388,399
440,441,422,443,445,446,447,448,449
550,551,552,553,554,556,557,558,559
660,661,662,663,664,665,667,668,669
770,771,772,773,774,775,776,778,779
880,881,882,883,884,885,886,887,889
990,991,992,993,994,995,996,997,998
200,211,233,244,255,266,277,288,299
300,311,322,344,355,366,377,388,399
400,411,422,433,455,466,477,488,499
500,511,522,533,544,566,577,588,599
600,611,622,633,644,655,677,688,699
700,711,722,733,744,755,766,788,799
800,811,822,833,844,855,866,877,899
900,911,922,933,944,955,966,977,988
110,112,113,114,115,116,117,118,119
220,221,223,224,225,226,227,228,229
330,311,322,344,355,366,377,388,399
440,441,422,443,445,446,447,448,449
550,551,552,553,554,556,557,558,559
660,661,662,663,664,665,667,668,669
770,771,772,773,774,775,776,778,779
880,881,882,883,884,885,886,887,889
990,991,992,993,994,995,996,997,998
Sunt 171 de numere de 3 cifre care au exact 2 cifre egale .
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