ishkur@craptop:~/Desktop$ ./ackcalc
Ackermann's Function Calculator

First Agrument: 2
Second Argument: 2
A(2, 2): 7

ishkur@craptop:~/Desktop$ ./ackcalc
Ackermann's Function Calculator

First Agrument: -4
Second Argument: -4
Segmentation fault
ishkur@craptop:~/Desktop$ ./ackcalc
Ackermann's Function Calculator

First Agrument: .2
Segmentation fault
ishkur@craptop:~/Desktop$