a= 367,025
b=89,127
a+b=456,152
a-b= 367,025-89,127= 277,898
a=15,436
a+b=18,525
b= 18,525-15,436= 3,089
a-b= 15,436-3,089= 12,347
b=180,800
a-b=144,334
a-180,800=144,334
a=180,800+144,334=325,134
a+b= 325,134+180,800= 505,934
a=408,467
a-b=28,674
408,467-b=28,674
b=408,467-28,674=397,793
a+b=408,467+397,793=788,260
