# exercise 1
#a
print("Hello, world")

#b
print("Hello", "woold!")

#c
print(3)

#d
print(3.0)

#e
print(2+3)

#f
print(2.0+3.0)

#g
print("2"+"3")

#h
print("2 + 3 =", 2 + 3)

#i
print(2 *3)

#j
print(2 ** 3)

#k
print(7 / 3)

#l
print(7 // 3)
