Novice · Arithmetic · 15 of 264
Difference
Read two whole numbers a and b and print a - b.
Input: a and b, one per line. Output: a - b
Examples
Input
10 3
Output
7
Input
3 10
Output
-7
Input
-5 -5
Output
0
One more test checks other inputs when you press Check.
Stuck? The idea behind arithmetic
input() always gives text: turn it into a whole number with int() or a decimal with float() before doing sums.
+ - * / work as in maths; / always gives a decimal. // divides and drops the remainder, % gives the remainder, ** raises to a power.
a = int(input()) b = int(input()) print(a + b) print(a // b, a % b)
Watch for: "5" + "3" is "53", not 8: if a sum joins numbers together, an int() is missing.