Răspuns:
0+2+4+6+8+10+12+14+16+18+20+22+24+26+28+30+32+34+36+38+40+42+44+46+48+50+52+54+56+58+60+62+64+66+68+70+72+74+76+78+80+82+84+86+88+90+92+94+96+98+100+102+104+106+108+110+112+114+116+118+122+124+126+128+130+132+134+136+138+140+142+144+146+148+150+152+154+156+158+160+162+164+166+168+170+172+174+176+178+180+182+184+186+188+190+192+194+196+198=9780
Sper ca te am ajutat