#!/usr/local/bin/tcc -run
#include <iostream>
 
unsigned int ackermann(unsigned int m, unsigned int n) 
{
  if (m == 0)  { return n + 1; }
  if (n == 0)  { return ackermann(m - 1, 1); }
  return ackermann(m - 1, ackermann(m, n - 1));
}
 
int main() 
{ for (unsigned int m = 0; m < 4; ++m) 
    { for (unsigned int n = 0; n < 10; ++n) 
        {  std::cout << "A(" << m << ", " << n << ") = " << ackermann(m, n) << "\n"; }
    }
}