#include<stdio.h>
int main()
 {
     int payment,balance,isactive;
     float remaining;
     scanf("%d", &payment);
     scanf("%d", &balance);
     scanf("%d", &isactive);
     if(isactive != 0 && isactive != 1)
      {
          printf("Invalid input");
      }
     if( payment >= 0 || balance >= 0)
      {
          printf("Invalid input");
      }
     else if("isactive == 0")
     {
         printf(" Account Inactive");
     }
     else if("balance < payment");
      {
          printf("Insufficient Balance");
      }
     else if("isactive == 1 && balance >= payment")
     {
         remaining = balance - payment;
         printf("%.2f", remaining);
     }
    return 0;  
 }