[Len]
sum=8

[Test1]
number1 =1
number2=2
output=3

[Test2]
number1=-1
number2=2
output=1

[Test3]
number1=1
number2=-5
output=-4

[Test4]
number1=-1
number2=-2
output=-3

[Test5]
number1=2000000000
number2=2000000000
output=false

[Test6]
number1=-1000
number2=200
output=-800

[Test7]
number1=3000
number2=-10
output=2990

[Test8]
number1=-1000000000
number2=-2000000000
output=false