Răspuns:
294
Explicație pas cu pas:
7,17,27,37,47,57,67,70,71,72,73,74,75,76,77,78,79,87,97,107,117,127,137,147,157,167,170,171,172,173,174,175,176,177,178,179,187,197,207,217,227,237,247,257,267,270,271,272,273,274,275,276,277,278,279,287,297,307,317,327,337,347,357,367,370,371,372,373,374,375,376,377,378,379,387,397,407,417,427,437,447,457,467,470,471,472,473,474,475,476,477,478,479,487,497,507,517,527,537,547,557,567,570,571,572,573,574,575,576,577,578,579,587,597,607,617,627,637,647,657,667,670,671,672,673,674,675,676,677,678,679,687,697,700,701,702,703,704,705,706,707,708,709,710,711,712,713,714,715,716,717,718,719,720,721,722,723,724,725,726,727,728,729,730,731,732,733,734,735,736,737,738,739,740,741,742,743,744,745,746,747,748,749,750,751,752,753,754,755,756,757,758,759,760,761,762,763,764,765,766,767,768,769,770,771,772,773,774,775,776,777,778,779,780,781,782,783,784,785,786,787,788,789,790,791,792,793,794,795,796,797,798,799.807,817,827,837,847,857,867,870,871,872,873,874,875,876,877,878,879,887,897,907,917,927,937,947,957,967,970,971,972,973,974,975
