I used this method
for n in range(10,99):
def firstDigit(n) :
while n >= 10:
n = n / 10;
return int(n)
def lastDigit(n) :
return (n % 10)
z = firstDigit(n)**2 + lastDigit(n)**2 + firstDigit(n) + lastDigit(n);
if z == n:
print(z)
But gave this error why?
IndentationError: unindent does not match any outer indentation level