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AVETI POZA , multumesc !​

AVETI POZA Multumesc class=

Răspuns :

1)97 este le locul 20

2)2+7+12+17+22+27+32+37+42+47+52+57+62+67+72+77+82+87+92+97=9+29+49+69+89+109+129+149+169+189=38+118+198+278+358=156+476+358=632+358=990