#include<stdio.h>
int main()
{
    int withdrawal;
    int balance;
    int status;
    
    scanf("%d", &withdrawal);
    scanf("%d", &balance);
    scanf("%d", &status);
    
    if(status == 0)
    {
        printf("Account Inactive\n");
    }
    else if(withdrawal > balance)
    {
        printf("Insufficient Balance\n");
    }
    else
    {
        float updatedBalalnce = balance - withdrawal;
        printf("%.2f\n",updatedBalance);
    }
    return 0;
}