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