Description

Calculate the remainder when dividing two double-precision floating-point numbers $a$ and $b$, where both $a$ and $b$ are double-precision floating-point numbers. Here, the remainder ($r$) is defined as: $a = k \times b + r$, where $k$ is an integer and $0 \le r < b$.

Input Format

One line containing two double-precision floating-point numbers $a$ and $b$.

Output Format

One line containing the remainder of $a \div b$.

Sample

73.263 0.9973

0.4601