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  1. #include <stdio.h>
  2. #define CONCAT(string) "start"string"end"
  3.  
  4. int main(void) {
  5. printf(CONCAT("-hello-"));
  6. return 0;
  7. }
Success #stdin #stdout 0.02s 1720KB
stdin
Standard input is empty
stdout
start-hello-end