numbers = c(7, 3, 9, 11, 2)
sort(numbers)  # 2  3  7  9 11

fruits = c("apple", "peach", "lemon", "banana", "ananas")
sort(fruits)                   # "ananas" "apple"  "banana" "lemon"  "peach" 
sort(fruits, decreasing=TRUE)  # "peach"  "lemon"  "banana" "apple"  "ananas"
