#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 (paymentAmount < 0 || paymentAmount > 1000000 || accountBalance ||
    {
        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;
 }