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