Problems

# The distance from the point to the line

Find the distance from the point O to the line ax + by + c = 0.

#### Input

Five integers - the coordinates of the point O and coefficients a, b, c of the line equation. All integers do not exceed 10000 by absolute value.

#### Output

Print one number - the distance from the point O to the line with an accuracy of at least 10-6.

Time limit 1 second
Memory limit 128 MiB
Input example #1
1 1 1 1 -1

Output example #1
0.70710678