print("hello world")
#print(hellp world)--NameError, not defined
#what is value?: hello world
#what is operator? (mathematical operator: +,* with priorities)
name = input('Please enter your name: ') #define the variable
print('Hello,', name)
#input()--function
grade="A" 
#Right side is expression e.g. "A",input('Please enter your name: ')
#Expression--NO "="
#Statement--WITH "=" e.g. grade="A"
print(name,"got a grade", grade)
#String: "xxx,xxx,xxx"