class Cereal:

def $\_\_$init$\_\_($self$,$ name, brand, fiber$)$:

# Assign the input values to instance variables

self.name $=$ name

self.brand $=$ brand

self.fiber $=$ fiber

def $\_\_$str$\_\_($self$)$:

# Return the formatted string

return f$"\{$self$.$name$\}$ cereal is produced by $\{$self$.$brand$\}$ and has $\{$self$.$fiber$\}$ grams of fiber in every serving!"

# Create instances of the Cereal class

c$1=$ Cereal$("$Corn Flakes", "Kellogg's", $2)$

c$2=$ Cereal$("$Honey Nut Cheerios", "General Mills", $3)$

# Print the instances

print$($c$1)$ # Output: Corn Flakes cereal is produced by Kellogg's and has $2$ grams of fiber in every serving!

print$($c$2)$ # Output: Honey Nut Cheerios cereal is produced by General Mills and has $3$ grams of fiber in every serving!