#include<stdio.h>
int main()
{
    char ch;
    int paymentAmount;
    int accountBalance;
    int isActive;
   if(
    scanf("%d",&paymentAmount)!=1||
    scanf("%d",&accountBalance )!=1||
    scanf("%d",&isActive)!=1
    )
    {
    printf("Invalid input");
    return 0;
    {
    if(isActive==0){
    printf("Account inactivre");
    }
    else if(paymentAmount> accountBalance)
    {
        printf("Insufficient amount");
    }
    else{
        float reamingbalance= accountBalance-paymentAmount:
        print("%.2f",remaingBalance);
    }
    return 0;
}