Challenge: Swap the Values Without Using an Extra Variable

Exchange the values of two variables without using an extra variable. We will still write pseudocode and draw a flowchart of the solution.

Problem statement

You have two variables n1 and n2 containing two numbers, and you want to swap the values that they hold, without using a third temporary variable.

Input

You take the numbers n1 and n2 as the input.

Output

The output is two variables with their values swapped.

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