#include "stdio.h"
#include "string.h"
int main(void)
{
char s[80], temp;
int i, length;
gets(s);
length = strlen(s);
for (i = 0; i < length/2; i++)
{
temp = s[i];
s[i] = s[length - 1 - i];
s[length - 1 - i] = temp;
}
puts(s);
return 0;
}
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