1、687=439=56+8=36+20=57+40=38-20=98-32=58+36=64+7=62+9=12+38-15=34+7=96-70+22=85-12=54-13-18=58+13=18+32+15=48+15-27=69-14=67-25+12=78-48-13=429=4862=4557=568-5=324-6=8194=355+2=72-11=5463=497+36=63+50=238=46-8=82+40=496=99-60=67-12=7294=287-2=728+20=336=362=98-45=65-34+17=89-78+34=45+12-46=90-47-23=1
2、2+69-46=639=236=4598=49-17=58+49=1249=37-18=89-65=7295=8194=57-19=96-34=43+75=78-37=3069=5498=37+39=35-105=2489=8195=4867=7286=4089=45-13=67+12=38+29=87-42=69-38=47-19=36+28=75-26=5674=2179=2798=2849=49+27=19-9+67=48-17=96+19=68743956+836+2057+4038-2098-3262+912+38-15 89-78+3445+12-4690-47-2312+69-46639236459849-1749699-6067-127294287-2728+2035-1052489819548677286408919-9+6748-1796+1948624557568-5324-68194355+272-115463497+3663+5023846-882+4049699-607294287-2728+2033636298-4549-1758+49124937-1889-657295819457-1996-3443+7578-37