// editor2
#include<stdio.h>
int main()
{
    float a,b;
    int c;
    if(scanf("%d %f %d",&a,&b,&c)!=3)
    {
        printf("Invalid input");
    }
    if(a<=0 || a>=1000000 || b<=0 || (c!=1))
    {
        printf("Invalid input\n");
    }
    if(c==0)
    {
        printf("Account Inactive\n");
    }
    if(a>b)
    {
        printf("Insufficient Balance");
    }
    float remaining=b-a;
    printf("%.2f",remaining);
    return 0;
}