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