#include <stdio.h>
#include <string.h>
int main (){
const int N=253;
const int M=253;
char str[N], res[M], c;
int i=0,m;
while ((i
< N
- 1) && (c
= getchar()) != '\n') str[i++]=c;
str[i--]='\0';
m=0;
while (m<=i)
return 0;
}
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