#include <stdio.h>
int main()
{
    double paymentAmount,accountBalance;
    int isActive;
     
     if (scanf("%lf %lf %d",&paymentAmount,&accountBalance,&isActive)!=3){
         printf("Invalid input");
         return 0;
     }
     if (paymentAmount <0 || paymentAmount <1000000 || accountBalance < 0 || accountBalance > 1000000 ||(isActive !=0 && isActive=1)){
         printf("Invalid input");
         return 0;
     }
     if (isActive ==0){
         printf("Account Inactive");
     }
     else if (accountBalance < paymentAmount ){
         printf("Insufficient Balance");
     }
     else {
         double remainingBalance=accountBalance-paymentAmount;
         printf("%.2lf",remainingBalance);
     }
     return 0;
}