(679+790)+(20909*67990)+6789-2347*6789+(780+560) = 1405678725
1) 679+790 = 1469
2) 20909*67990 = 1421602910
3) 780+560 = 1340
4) 2347*6789 = 15933783
5) 1469+1421602910 = 1421604379
6) 1421604379+6789 = 1421611168
7) 1421611168-15933783 = 1405677385
8) 1405677385+1340 = 1405678725
(679+790)+(20909*67990)+6789-2347*6789+(780+560)=1, 405, 678 , 725
