Task Description
Write a program to read three integers $a$, $b$, and $c$, then print their sum.
Input Format
There are three lines in the input. The first line has the integer $a$, the second line has the integer $b$, and the third line has the integer $c$.
Output Format
There is one line in the output. The line has the sum of $a$, $b$, and $c$.
Sample Input
1
2
3
Sample Output
6