#!/usr/bin/env tclsh

set nums [split [read stdin] \n]
set n [llength $nums]

for {set i 0} {$i < $n - 1} {incr i} {
  for {set j $i} {$j < $n} {incr j} {
    set a [lindex $nums $i]
    if {$a eq ""} continue
    set b [lindex $nums $j]
    if {$b eq ""} continue
    if {$a + $b == 2020} {puts "$a $b [expr {$a * $b}]"; exit}
  }
}