#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;
}