args before: [[]]
[args were not changed]
result: []

args before: [["cdef","abcxyz","abcmnop"]]
[args were not changed]
result: ["cdef","abcxyz","abcmnop"]

args before: [["cdef","cdef","cdef"]]
[args were not changed]
result: ["","",""]

args before: [["abcdef","abcxyz","abcmnop","abcdef"]]
[args were not changed]
result: ["def","xyz","mnop","def"]

args before: [["abcdef","abcxyz","aabcmnop","abcdef","abcxyz"]]
[args were not changed]
result: ["bcdef","bcxyz","abcmnop","bcdef","bcxyz"]

args before: [["abcdef","abcxyz","abcmnop","abcdef","abcxyz","abcmnop"]]
[args were not changed]
result: ["def","xyz","mnop","def","xyz","mnop"]

args before: [["abcdef","abcxyz","abcmnop","abcdef","abcxyz","abcmnop","dabcdef"]]
[args were not changed]
result: ["abcdef","abcxyz","abcmnop","abcdef","abcxyz","abcmnop","dabcdef"]