Problems

# Subtraction

# Subtraction

Find the difference of two nonnegative integers **A** and **B**.

**Input **

In the input file is given two nonnegative integers **A** and **B** (**B** ≤ **A** ≤ **10 ^{10000}**), each in its line.

**Output**

In the output file print out a single number equal to the difference between

**A**and

**B**.

Input example #1

5 3

Output example #1

2