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