a = "Hello world!"
b = "Hello"

-- Determining if the first string starts with second string
put a starts b
-- 1

-- Determining if the first string contains the second string at any location
put a contains b
-- 1

-- Determining if the first string ends with the second string
put a.char[a.length-b.length+1..a.length] = b
-- 0

b = "world!"
put a.char[a.length-b.length+1..a.length] = b
-- 1

-- Print the location of the match for part 2
put offset(b, a)
-- 7