// editor2
#include<stdio.h>
int main()
{
    int paymentAmount, accountBalance, isActive;
    if(scanf("%d %d %d", &paymentAmount, &accountBalance, &isActive)!= 3)
    {
        printf("Invalid input");
        return 0;
    }
    if(isActive == 0)
    {
        printf("Account Inactive\n");
    }
    else if(paymentAmount > accountBalance)
    {
        printf("Insufficient Balance\n");
    }
    else
    {
        float remaining = (float)(accountBalance - paymentAccount);
        printf("%.2f\n", remaining);
    }
    return 0;
}