# airthmrtic operators:
# +,-,*,/,//,**,%
num = 1
# print(type(num))
# print(7 *(10 /   5))
num = num +2.5
# print(num)
num = num * -num
print(num)
print(abs(num))
print(round(num))
print(int(num))


# comparisons:
# ==,!=,>,<,<=,>=
num_2 =5
# print(num != num_2)

num_3 = '50'
num_4 = '100'
print(num_3 + num_4)
print(type(num_3))

num_3 = int(num_3)
num_4 = int(num_4)
print(num_3 + num_4)