#include<stdio.h>
int main()
{
int paymentAmount,accountBalance,isActive;
float a;
scanf("%d",&paymentAmount);
scanf("%d",&accountBalance);
scanf("%d",&isActive);
if(paymentAmount<=1||paymentAmount>1000000||accountBalance<=1||accountBalance>1000000)
{
printf("Account Inactive");
}
else if(accountBalance<paymentAmount)
printf("Insufficient Balance");
}
else if(isActive==0)
{
printf("Account Inactive:");
}
else
{
a=accountBalance-paymentAmount;
printf("%.2f",a);
}
return 0;
}