num_int = 123
num_str = "456"

print("Data type of num_int:",type(num_int))
print("Data type of num_str:",type(num_str))

print(num_int+int(num_str))

print(str(num_int)+num_str)

print(int(1.78))

# int(...)
# str(...)

# 1.5  round(1.5) = 2



