#include<stdio.h>
int main ()
{
    int paymentamount,accountbalance,inactive;
    scanf("%d %d %d",&paymentamount,&accountbalance,&inactive);
    if (accountbalance==0)
    {
        printf("Account inactive");
    }
    else if (paymentamount>accountbalance)
    {
        printf("Insufficient Balance");
    }
    (double remainingbalance ==accountbalance-paymentamount);
    
        printf("%.2f",remainingbalance);
    
    return 0;
}