package main
import "regexp"
import "strings"
func main() {
regexp.MustCompile(`a.*b.*c`).MatchString(strings.Repeat("a", 20000000) + strings.Repeat("b", 20000000))
}
cGFja2FnZSBtYWluCgppbXBvcnQgInJlZ2V4cCIKaW1wb3J0ICJzdHJpbmdzIgoKZnVuYyBtYWluKCkgewogICAgcmVnZXhwLk11c3RDb21waWxlKGBhLipiLipjYCkuTWF0Y2hTdHJpbmcoc3RyaW5ncy5SZXBlYXQoImEiLCAyMDAwMDAwMCkgKyBzdHJpbmdzLlJlcGVhdCgiYiIsIDIwMDAwMDAwKSkKfQ==