#include <stdio.h>

char line[1000];
int linelen = 0;

int linecontains(char *target)
{
  int i;
  int j;
  int targetlen = 0;

  while (target[targetlen])
    ++targetlen;

  for (i = 0;i < linelen - targetlen;++i) {
    for (j = 0;j < targetlen;++j)
      if (line[i + j] != target[j])
	break;
    if (j == targetlen)
      return 1;
  }

  return 0;
}

void printline()
{
  int i;
  for (i = 0;i < linelen;++i)
    putchar(line[i]);
}

int main(int argc,char **argv)
{
  int ch;

  while ((ch = getchar()) != EOF) {
    line[linelen++] = ch;
    if (ch == '\n') {
      if (linecontains(argv[1]))
	printline();
      linelen = 0;
    }
  }
  return 0;
}