#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define MLEN 20
int main(void) {
char baka[MLEN];
if(l < MLEN / 2){
for(int i = l; --i >= 0; ++l) baka[l] = baka[i];
baka[l] = '\0';
}
return 0;
}
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