#include<stdio.h>
int main()
{
    int paymentAmount;
    int accountBalance;
    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;
}