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concat/3

Concatenate two strings

Remarks

concat/3 works as if defined by the equation

String3 = String1 + String2

Example

concat("aaa","bbb",X)
X=aaabbb
1 Solution
concat("aaa",X,"aaa----bbb")
X=----bbb
1 Solution
concat(X,"bbb","aaa----bbb")
X=aaa----
1 Solution
concat("aaa","bbb","aaabbb")
Yes
concat("aaa","bbb","aaa----bbb")
No