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24 lines
408 B
C++
24 lines
408 B
C++
#include <iostream>
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#include <algorithm>
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using std::cin;
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using std::cout;
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using std::endl;
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int t, a, p;
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int main() {
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cin >> t;
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while (t--) {
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cin >> a >> p;
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if (p < 16) {
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cout << std::max(0, a - 10) << endl;
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} else if (p > 20) {
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cout << std::max(0, a - p + 20) << endl;
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} else {
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cout << a << endl;
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}
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}
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return 0;
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}
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