package main

import (
	"io/ioutil"
	"log"
	"os"
	"regexp"
)

func main() {
	regexps := []*regexp.Regexp{}
	for _, re := range os.Args[2:] {
		re = "(?m:" + re + ")"
		re_c, err := regexp.Compile(re)
		if err != nil {
			log.Fatal(re, ": ", err)
		}
		regexps = append(regexps, re_c)
	}

	s, err := ioutil.ReadFile(os.Args[1])
	if err != nil {
		log.Fatal(err)
	}

	for _, re := range regexps {
		for _, match := range re.FindAll(s, -1) {
			print(string(match), "\n")
		}
	}
}