(100+200+300+400+500+600+700+800+900)*1+(10+20+30+40+50+60+70+80+90)*2+(1+2+3+4+5+6+7+8+9)*3=4500*1+450*2+45*3=4500+900+135=5535所以,和为5535
5545
5535
5544