AtCoder Beginner Contest 136(A - Transfer)

1. #include<bits/stdc++.h>
2. using namespace std;
3. int main()
4. {
5. int a, b, c;
6. cin >> a >> b >> c;
7. cout << ((a-b > c)? 0 : c-(a-b)) << endl;
8. return 0;
9. }