# code which is fine
a = "abcdefghijklmnopqrstuvwxyz"
a = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
a = "bcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"

# code which has issues
a = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
a = "fooabcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZbar"
