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