#include<stdio.h>
int main()
{
    int PaymentAmount, accountBalance, isActive;
    if(scanf("%d %d  %d", &paymenetAmount, &accountBalance, &isActive) !=3)
    {
    printf("Invalid input\n");
    return 0;
}

if(isActive !=1)
{
    printf("Account Inactive\n ");
}
else if(paymenetAmount > accountBalance)
{
    printf("Insufficient Balance\n");
}
else
{
    float reminingBalance = accountBalance - paymentAmount;
    printf("%.2f\n", remainingBalance);
}
return 0;
}