Python Write a code that takes two integers to obtain an odd sum and an even sum between two numbers

sum=0
a=int (input ("first integer : ")))
b=int (input ("second integer : ")))
if a % 2 ==0 :       
    for i in range(a,b) :        
else:
    print("even sum:",a)
if a % 2 == 1 :
    for i in range(a,b)
else:
    print("odd sum: "", b)