#include<stdio.h>
int main()
{
    int payAmt, accBal, isActive;
    if (scanf("%d", &payAmt) !=1)
    {
        print("Invalid input");
        return 0;
    }
    if (scanf("%d", &accBal) !=1)
    {
        printf("Invalid input");
        return 0;
    }
    if (scanf("%d", &isActive) !=1)
    {
        printf("Invalid input");
        return 0;
    }
    float amt=accBal-payAmt;
    if(isActive == 1)
    {
        if(accBal >= payAmt)
        {
            printf("%.2f\n",amt);
        }
        else
        {
            printf("Insufficient Balance\n");
        }
    }
    else if(isActive==0)
    {
        printf("Account Inactive\n");
    }
    else
    {
        printf("Invalid input\n";)
    }
    return 0;
}