#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");
        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 (paymentAmount > accountBalance)
    {
        printf("Insufficient Balance");
    }
    else
    {
        float remainingBalanace = accountBalance - paymentAmount;
        printf("%.2f" , remainingBalance);
    }
    return 0;
}