is a number equal to the sum of the digits of a number between two numbers
import math
def sumDigits(f,t,x):
if f>t:
if t>=10:
r=math.floor(t/10)
t=x-r
t=t+r*10
if(t<=f):
print(t)
else:
return -1
else:
return -1
else:
if f>=10:
r=math.floor(f/10)
f=x-r
f=f+r*10
if(f<=t):
print(f)
else:
return -1
else:
return -1
sumDigits(25,20,9)