# your code here

print(100)
print(100 + 200)
print('100 + 200')
print(100, 200)
print('100', '200')
print('100''200')
print('Hello Python!')
print('Hello', 'Python', '!')
print('Hello' + 'Python' + '!')
print('Hello''Python''!')
print('********************')
print('*' * 20)

# your code here

print('Hello Python!')
print('*'*20)
print('Life is short learn Python!')
print(100 + 200)      # 숫자 100과 200의 합 300을 출력하라

# your code here

print('I love Python!')
print('I love Python!')
print('I love Python!')
print('I love Python!')
print('I love Python!')

# your code here

print('*')
print('**')
print('***')
print('****')
print('*****')

# your code here

print(400 - 200 + 100)
print(400 * 200 - 100)
print(6 * 3 / 9)
print(9 ** 3)
print(9 / 3)
print(9 // 3)

# your code here
print(1+2+3+4+5+6+7+8+9+10)
print(5*2*3.14)
print(20*4)
print(20*20)
print(2*(10+30))
print(10*30)

# your code here
print( \
      30*29*28*27*26*25*24*23*22*21* \
      20*19*18*17*16*15*14*13*12*11* \
      10* 9* 8* 7* 6* 5* 4* 3* 2)

# your code here

# h = 1000m
print('rho at 1km : ', 101325*0.0289652/8.31446/288.15 \
      * (1-0.0065*1000/288.15)**(9.80665*0.0289652/8.31446/0.0065-1) )

# h = 2000m
print('rho at 2km : ', 101325*0.0289652/8.31446/288.15 \
      * (1-0.0065*2000/288.15)**(9.80665*0.0289652/8.31446/0.0065-1) )

# h = 3000m
print('rho at 3km : ', 101325*0.0289652/8.31446/288.15 \
      * (1-0.0065*3000/288.15)**(9.80665*0.0289652/8.31446/0.0065-1) )