코드당
Problem

#11. [W2, var, Lv1] Correct the program 1

#11. [W2, var, Lv1] Correct the program 1

Correct the program with valid variable names.

- Execution result:

  sum: 3

- ANY valid names are OK.


Input

Output

Time Limit:

2000 ms

Memory Limit:

512 MB

Source: