Case 4 : For m = n = 3 > p = 2 and q = 5 > m = n, the diophantine
equation (1) becomes 27x + 45y = 243. Since gcd(27, 45) = 9 and 9|243, there
are infinitely many solutions of the diophantine equation (1). There exists
positive integer t such that (54)/5 2 and m = n>p
and q>m = n.