#include<stdio.h>
int main(){
    double paymentAmount, accountBalance;
    int isActive;
    if(scanf("%1*f %1*f %d", &paymentAmount, &accountBalance, &isActive) != 3){
        printf("Invalid Input\n");
        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("InsufficientBalance\n");
        return 0;
    }
    double remainingBalance = accountBalance - paymentAmount;
    printf("%.2f\n",remainingBalance);
    return 0;
}