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Any Base Subtraction

Question
 1. You are given a base b.
2. You are given two numbers n1 and n2 of base b.
3. You are required to subtract n1 from n2 and print the value.

Input Format
A base b
A number n1
A number n2
Output Format
A number of base b equal in value to n2 - n1.
Constraints
2 <= b <= 10
0 <= n1 <= 256
n1 <= n2 <= 256
Sample Input
8
1
100
Sample Output
77
Output
Expected Output
 
Error:
Output
RUN
Id Name