学步园

//通过读钟表上面的点数，计算出需要strike的次数，很简单，将字符串转换为数字就OK！ 
#include <iostream>
#include <string>
using namespace std;

int main()
{
    int tc, len, i, j, h, m;
    string time;
    cin >> tc;
    while (tc--){
          cin >> time;
          h = m = 0;
          len = time.length();
          for (i = 0; i < len; i++){
              if (time[i] == ':')  break;
              h = (time[i]-48) + h * 10; 
          }
          for (j = i+1; j < len; j++){
              m = (time[j]-48) + m * 10;
          }
          if (m == 0){
                if (h == 0)
                   cout << 12 << endl;
                else if (h == 1)
                   cout << 13 << endl;
                else if (h == 2)
                   cout << 14 << endl;
                else if (h == 3)
                   cout << 15 << endl;
                else if (h == 4)
                   cout << 16 << endl;
                else if (h == 5)
                   cout << 17 << endl;
                else if (h == 6)
                   cout << 18 << endl;
                else if (h == 7)
                   cout << 19 << endl;
                else if (h == 8)
                   cout << 20 << endl;
                else if (h == 9)
                   cout << 21 << endl;
                else if (h == 10)
                   cout << 22 << endl;
                else if (h == 11)
                   cout << 23 << endl;
                else if (h == 12)
                   cout << 24 << endl;
                else if (h == 13)
                   cout << 1 << endl;
                else if (h == 14)
                   cout << 2 << endl;
                else if (h == 15)
                   cout << 3 << endl;
                else if (h == 16)
                   cout << 4 << endl;
                else if (h == 17)
                   cout << 5 << endl;
                else if (h == 18)
                   cout << 6 << endl;
                else if (h == 19)
                   cout << 7 << endl;
                else if (h == 20)
                   cout << 8 << endl;
                else if (h == 21)
                   cout << 9 << endl;
                else if (h == 22)
                   cout << 10 << endl;
                else if (h == 23)
                   cout << 11 << endl;
                else if (h == 24)
                   cout << 12 << endl;
          }
          else 
              cout << 0 << endl;
    }
    
    system("pause");
}