Print Function - Spot the Bug

Each program has one mistake. Tap the line where the mistake is, then choose the change to that line that makes the program work.

Program 1 of 13

1. Print the numbers 10 and 20 on separate lines, then their sum on a third line, then 'Done'.

it should print

10
20
30
Done

Step 1: tap the line where the mistake is.

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