C Replace Printed Text

So I have this script and I want to replace printed "Dont" with "Lets". I don’t want to use system() since the effect is different.

#include <stdio.h>

int main(){
    printf("Dont do this");
    /* Replace printed "Dont" with "Lets" */
    return 0; 
}

>Solution :

Try \r:

#include <stdio.h>

int main(){
    printf("Dont do this");
    printf("\rLets");
    printf("\n");
    return 0; 
}