# 1-vazifa
# n=input("n=")
# s=0

# n=int(n)
# try:
# for i in range(0,n+1):
# s+=n
# print(s)
# except:
# print('Butun son kiriting')
# # 2- vazifa

# n=int(input('n='))
# l=[1,2,3,4,45,7,8,99,97]
# try:
# print(l[n])
# except IndexError:
# print('indexda xatolik!')


# 3-vazifa


# l={"apple":"olma", "banana":"banan","apricos":"o'rik"}
# key=" vino"
# try:
# print(f'meva turi: {l[key]}')
# except KeyError:
# print("Bunday kalit mavjud emas")

# 4-vazifa
# cars={"car1":'mercedes','car2':" Bmw", "car3": 'Ferrari'}
# key='car4'
# try:
# print(f' men yoqtirgan moshina {cars[key]}')
# except KeyError:
# print("keyda xatolik bor")
# 5-vazifaa
# x=float(input('x='))
# y=float(input('y='))
# try:
# d=(x*y)/(x-y)
# print(f'natija {d}')
# except ZeroDivisionError:
# print(" 0 ga bo'lish mumkin emas")

# 6- vazifa

# import math
# x=float(input("x="))
# try:
# a=math.sqrt(x)
# print(a)
# except:
# print('manfiy sondan ildiz chiqmaydi')

# 7-vazifa
# l=[13,45,6,34,64,2,45,6,32,134,5]
# n=int(input("n="))
# m=int(input("m="))
# try:
# print(l[n-1]+l[m-1])
# print(l[m-1]-l[m-1])
# except IndexError:
# print(" Iindexni xato kiritdiz")

#8-vazifa
# x=input('x=')
# try:
# x=float(x)
# a=x**2
# print(a)
# except:
# print('son xato kiritildi')

# 9-vazifa
# n=float(input("n="))
# m=float(input("m="))
# import math
# try:
# A=m*n/(math.sin(n)-math.cos(m))
# print(A)
# except ZeroDivisionError:
# print(" m va n lar 45 gradus va unga karrali burchakka teng bo'lishi mumkin emas")

# 10- vazifa
# yosh=input("Yoshizni kiriting ")

# try:
# yosh=int(yosh)
# print(f'{2023-yosh}-yilda tug\'ilgansiz')
# except ValueError:
# print('Yosh xato kiritildi')