#include<stdio.h>
int main()
{
    float paymentAmount,accountBalance;
    int isActive;
    if(scanf"%f %f %d",&paymentAmount,&accountBalance,&isActive) !=3)
    {
        printf("Invalid input");
        return 0;
    }
    if(paymentAmount < 0 ||accountBalance < 0 ||(isActive!=0 && isActive!=1))
{
    printf("invalid input\n");
    return 0;
    
}
if(isActive==0)
{
    printf("Account Inactive\n");
    return 0;
}
if(paymentAmount>accountBalance)
{
    printf("Insufficient Balance\n");
    return 0;
}float remainingBalance = accountBalance-paymentAmount;
printf("%0.2f\n",remainingBalance);
return 0;