Ответ:

print ("n = ",end="")

n=int(input())

for z in range(1, n):

   for x in range(z, n):

       for y in range(z, n):

           if z*z+x*x==y*y: print("z = ","%2d"%z,"     x = ","%2d"%x,"     y = ","%2d"%y)