#include<stdio.h>
int main(){
    int paymentAmount, accountBalance, isActive;
    if(scanf("%d", &paymentAmount)!=1){
    printf("Invalid input");
    return 0;}
    if(scanf("%d", &accountBalance)!=1){
    printf("Invalid input\n");
    return 0;}
    if(scanf("%d", &isActive)!=1){
    printf("Invalid input\n");
    return 0;}
    float amt=accountBalance-paymentAmount;
    if(isActive == 1 ){
        if(accountBalance >= paymentAccount){
            printf("%.2f", amt);}
    else{
    printf("Insufficient Balance");}}
    else if(isActive==0){
        printf("Account Inactive");
    }
    else{
    printf("Invalid Input");}
    return 0;
    }