from math import sqrt


def zad1(n):
  for i in range(0,n+1):
    print(i)
print("====Zad 1====")
zad1(7)


def zad2(n):
  for i in range(n, -1, -1):
    print(i)
print("====Zad 2====")
zad2(10)


# Zadania 3, 4, 5, 6 się powtarzają



def zad9(ilosc):
    if ilosc < 50:
        cena = 8*ilosc
        return cena
    elif ilosc > 50 and ilosc <= 100:
        cena = 7*ilosc
        return cena
    else:
        cena = 6.50*ilosc
        return cena
print("====Zad 9====")
print(zad9(10))
print(zad9(80))
print(zad9(200))

def zad10(n):
    for i in range(n):
        for n in range(n):
            print("o", end="")
        print("\n")
print("====Zad 10====")
print(zad10(3))
print("=====")
print(zad10(5))

def zad11(m, n):
    for i in range(m):
        for k in range(n):
            print("o", end="")
        print("\n")
print("====Zad 11====")
print(zad11(3,5))


def zad12(n):
    return n*2

print("====Zad 12====")
print(zad12(10))

def zad13(n):
    return n**2
print("====Zad 13====")
print(zad13(5))

def zad14(n):
    n = int(n)
    return sqrt(n)

print("====Zad 14====")
print(zad14(9))

def zad15(n):
    y = n**2 + 2*n + 3
    return y

print("====Zad 15====")
print(zad15(0))
print(zad15(1))

def zad16(a, b, c, x):
    y = a*x**2 + b*x + c
    return y
print("====Zad 16====")


def zad17(n):
    suma = 0
    for i in range(n):
        suma += i
    return suma
print("====Zad 17====")
print(zad17(6))

def zad18(n):
    for i in range(n):
        print(i)
print("====Zad 18====")
zad18(5)
print("====")
zad18(10)