#include<stdio.h>
void processpayment(int paymentAmount,int accountBalance,int isActive)
{
    if(paymentAmount<0||accountBalance<0||accountBalance>1000000000||paymentAmount>1000000||(isActive!=0&& isActive!=1))
    {
    printf("Invalid input");
    }
    else if(isActive==0)
    {
        printf("Account Inactive");
    }
    else if(paymentAmount>accountBalance)
    {
        printf("Insufficient Balance");
    }
    else
    {
        float remainingBalance=(float) accountBalance-paymentAccount;
        printf("%.2f",remainingBalance);
    }
}    
int main()
{
    int paymentamount,balance,isactive;
    if(scanf("%d %d %d",&paymentAmount,&accountBalance,&isActive)!=3)
    {
        printf("Invalid input");
    }
    else
    {
        processsPayment(paymentAmount,accountBaalance,isActive);
    }
}