#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\n");
       return 0;
    }
    if(paymentAmount < 0 || paymentAmount > 1000000||accountBalance < 0 || accountBalance > 1000000||(isActive != 0 && isActive != 1)){
           printf("Invalid input\n");
           return 0;
       }
    if(paymentAmount > accountBalance)
    {
        printf("Insufficient Balance");
        return 0;
    }
    float remaining = accountBalance - paymentAmount;
    printf("%.2f",remaining);
    if(isActive!=1){
        printf("Account Inactive\n")
    }
    return 0;
       
}