#include <stdlib.h>
#include <stdio.h>
#include <string.h>
 
char * get_n(char*s, int n)
{
    int i = 0;
    for(i = 0; i < n; ++i)
    {
        int sym = getc(stdin);
        if (sym == EOF) break;
        s[i] = sym;
    }
    s[i] = 0;
    return s;
}
 
int main(int argc, const char * argv[])
{
    char buf[20], *s;
    for(;;)
    {
        s = get_n(buf,10);
        if (s[0]) printf("10 symbols: [%s]\n",s);
        else break;
    }
}
 

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`435643`561 `1789870`192