#include <stdio.h>
#include <string.h>

int main()
{
  char source[1000], destination[1000];

  printf("Input a string\n");
  gets(source);

  strcpy(destination, source);

  printf("Source string: %s\n", source);
  printf("Destination string: %s\n", destination);

  return 0;
}

otput:

input the string

oh boy

"oh boy"

"oh boy"