# -*- coding: utf-8 -*-
"""
Created on Thu Mar 26 09:01:11 2026

@author: student
"""

def get_points():
    return int(input('Wprowadz liczbe punktow: '))
    
def solve(points):
    if points < 50: 
        return '2,0 ndst -> NZAL'
    elif points < 60:
        return '3,0 dst -> ZAL'
    elif points < 70:
        return '3.5 dst+ -> ZAL'
    elif points < 80:
        return '4,0 db -> ZAL'
    elif points < 90:
        return '4,5 db+ -> ZAL'
    else: 
        return '5,0 bdb -> ZAL'
    # else: return 'Podales zla liczbe punktow'
    
# === 1 sps ===
#print('Otrzymales ocne:', solve(get_points()))

# === 2 ===
points = get_points()
message = solve(points)
print('Otrzymales ocne:', message)

# === 3 ===
points = get_points()
print('Otrzymales ocne:', solve(points))