#70. Three numbers: a - b - c
You get three integers a, b, c. Print the value of `a - b - c`.
### Input
a, b, c, each on its own line (0 ≤ value ≤ 50).
### Output
One integer.
Examples
Input
43 37 28
Output
-22
Input
35 41 2
Output
-8
💡 You can solve it with Python, JavaScript or blocks. Read the input line by line with input(). Don't print a question (like input("Number: ")). Print exactly what the output asks for, nothing more.