24+(30-10) 52-(12+6) (25+10)-18 15+17-16 18+15-12 19-12+15
58+10-61 70-(50+12) 12-11+21 76+10-59 42+34-68 32-(51-30)
38-(54-21) 57+21-62 100-57+16 12+75-56 15+78-68 49+58-100
43+58-88 43-43+58 43-(87-32) 99-51-12 63+21-80 85-(21+50)
42-(58-21) 21+37-28 26+87-97 13-12+52 28+13-58 30-(72-28)
31-(52-30) 32+88-69 33-(89-69) 34-(12+21) 35-(52-35)
36+52+12 37+25-12 38+52-75 39+58-49 40-21+28 41-25+28 42+32-12
43-41+52 44+24-65 45-(88-75) 46+48-59 47+52-88 48-22+31
15-12+57 27+51-21
行吧?^-^!