#include <stdio.h>
#define MAXCHARS 100


void getline2 (char *t);
void strcat2 (char *ps, char *pt);

int main()
{
char s[MAXCHARS], t[MAXCHARS];
int i;

for (i = 0;i < MAXCHARS; i++){
    getline2(t);
    strcat2 (s,t);
    printf ("%s",s);
  }

 return 0;
}

void getline2 (char *t)
{
  int i = 0;
  while (i < MAXCHARS && ((*t++ = getchar() != EOF )))
      i++;
}

void strcat2 (char *ps, char *pt)
{
  while (*ps != '\0')
    *ps++;
  while((*ps++ = *pt++) != '\0')
  ;
}