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- #include <iostream>
- #include <cmath>
- using namespace std;
- int main() {
- int R, T, S, cas = 0, max;
- while(true) {
- cin >> R;
- if(R < 0) break;
- for(int i = 0; i < 50; i++)
- if(pow(2,i) >= R) {
- S = i;
- break;
- }
- cout << "Case " << ++cas << ": " << S << endl;
- }
- return 0;
- }
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