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