[Len] sum=8 [Test1] number1=1 number2=2 output=2 [Test2] number1=-1 number2=2 output=-2 [Test3] number1=1 number2=-5 output=-5 [Test4] number1=-9 number2=-11 output=99 [Test5] number1=100 number2=200 output=20000 [Test6] number1=-10000 number2=200 output=-2000000 [Test7] number1=300 number2=-1 output=-300 [Test8] number1=-11 number2=-11 output=121