# -*- coding: utf-8 -*-
"""
Created on Fri Jun 18 14:33:37 2021

@author: Sim
"""
hours = float(input('근무시간: '))

while(hours >= 0):
    if (hours <= 40):
        wage = hours*9000
    elif (hours <= 52):
        wage = 40*9000 + (hours-40)*13500
    else:
        print('근무시간을 다시 확인하기 바랍니다')
        wage= 'NA'
    print('근무시간: ', hours, ' 임금: ', wage)
    hours = float(input('근무시간: '))