#include<stdio.h>
#include<ctype.h>
int main()
{
    float paymentAmoun, accountbalance;
    int isactive;
    if(scanf("%f %f %d", &paymentamount, &accountbalance ,isactive) 1=3)
    {
        printf("Invalid input");
        return 0;
    }
    if(isActive==0){
        printf("Account Inactive\n");
    }
    else if (paymentAmount>
accountBalance){
    printf("Insufficient Balance");
    }
    else{
        float remaining =(float)
(accountBalance- paymentAmount);
    printf("%.2f\n",remaining);
    }
    return 0;
    }