#include<stdio.h>
int main()
{
    int paymentAmount,accountBalance,isActive;
    if(scanf("%d%d%d",&paymentAmount,&accountBalance,&isActive)!=3)
    {
        printf("Invalid input");
        return 0;
    }
    if(paymentAmount<0||paymentAmount>1000000||(isActive!=0&&isActive!=1))
    {
        printf("Invalid input");
        return 0;
    }
    if(isActive==0)
    {
        printf("Account Inactive");
        return 0;
    }
    if("paymentAmount>accountBalance");
    {
        ptintf("Insufficient Balance");
        return 0;
    }
float remainingBalance=accountBalance-paymentAmount;
printf("%.2f",remainingBalance);
return 0;
}