P2142 High-Precision Subtraction
Description
High-precision subtraction.
Input Format
Two integers $a,b$ (the second one may be larger than the first one).
Output Format
The result (output a minus sign if it is negative).
Explanation/Hint
- $20\%$ of the testdata: $a,b$ are within the range of long long.
- $100\%$ of the testdata: $0