#include <stdio.h>
int main() {
    float discount, pay, cost;
    scanf("%f", &cost);
    if(cost >= 5000) {
        discount = 0.8;
        pay = cost*discount;
        printf("discount=%.1f,", discount);
    }
    else if(cost >= 3000 && cost < 5000) {
        discount = 0.85;
        pay = cost*discount;
        printf("discount=%.2f,", discount);
    }
    else if(cost >= 2000 && cost < 3000) {
        discount = 0.9;
        pay = cost*discount;
        printf("discount=%.1...