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