#include<stdio.h>
int main()
{
    int paymentAmount, accountBalance, isActive;
    if(scanf("%d %d %d",&paymentAmount,&accountBalance,&isActive)!=3)
    { 
        printf("Invalid input");
        return 0;
    }
    if(paymentAmount<0||paymentAmount>1000000||accountBanlance<0||accountBalance>1000000||(isACtive!=0&&isActive!=1))
    {
        printf("Invalid input");
        return 0;
        
        
    }
    if(isActive==0)
    {
        printf("Account Inactive");
    }
    if else(paymentAmount>accountBalance)
    {
        printf("Insufficient Balance");
    }
    else
    {
        float remainingBalance=accountBalance-paymentAmount;
        print("%.2f",remainingBalance);
    }
    return 0;
}