Pre- vs Post-Increment

Read an integer x. Simulate both forms of increment starting from x and print what each produces.

Post-increment: r1 = a++ — r1 gets the old value, then a becomes x + 1.
Pre-increment: r2 = ++b — b becomes x + 1 first, then r2 gets the new value.

Input: one integer x.

Output: two lines:

<r1> <a>
<r2> <b>

Example 1

Input

Output

5 6
6 6

-1000000 <= x <= 1000000

Hint 1

a++ returns the value of a before adding 1; a is then x + 1.

Hint 2

++b adds 1 to b first, so both r2 and b are x + 1.

Post-increment (a++) evaluates to the old value, so r1 equals x while a moves to x+1. Pre-increment (++b) updates first, so both r2 and b are x+1. This is the classic difference the topic highlights.