#include "stdio.h"
char line[129];
main()
{ unsigned short n;
for(;;) {
fgets(line, sizeof(line), stdin);
if(feof(stdin))
break;
n = strlen(line);
n--;
fwrite(&n, 1, sizeof(n), stdout);
fwrite(line, 1, n, stdout);
n = 0;
fwrite(&n, 1, sizeof(n), stdout);
}
}
static struct D { struct D *a; char *b;} VER = {&VER,"\n81/4/8:prelim.c\n"};
/*1011011100100111*/