#include <stdio.h>
#include <stdlib.h>

void zamiana_s (void);

int main (int argc, char *argv[])
{
    zamiana_s ();
    return 0;
}

void zamiana_s (void)
{
    int c;
    for (c = getchar(); c != EOF; c = getchar())
        if (c == 's')
          putchar ('!');
        else
          putchar (c);
}
