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