Problems

# A square from squares

# A square from squares

Find the integer side length of the largest square, that can be obtained from three squares with sides **a**, **b** and **c**, cutting them into rectangles and then putting together to form a square.

#### Input

Three positive integers **a**, **b** and **c**, not greater than **1000**.

#### Output

Print the integer side length of the largest square.

Input example #1

2 3 4

Output example #1

5