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