#   include<stdio.h>
int main()
{
    int a,b,c;
    if(scanf("%d %d %d ,&a,&b,&c") !=3)
    {
        printf("Invalid input");
        return 0;
    }
    if(a<=0 || a>=1000000 || b<=0 ||b>=1000000 ||(c |=0&& c !=1))
{
    printf("invalid input\n");
    return 0;
}
if(c=-0)
{
    printf("Account Inactive\n");
    return 0;
}
if(a>b)
{
    printf("Insufficient Balance");
    return 0;
}
float remainingBalance =b-a;
printf("%.2f\n",remainigBalance);
return 0;
}