package main
import (
"fmt"
"strings"
)
func main() {
inputA :="KANGOORO"
inputB :="TIGER"
var shortest string
if len(inputA) < len(inputB){
isContain := strings.Contains(inputB, inputA)
if(isContain){
shortest = inputA
}else{
shortest = ""
}
}else{
isContain := strings.Contains(inputA, inputB)
if(isContain){
shortest = inputB
}else{
shortest = ""
}
}
fmt.Println(shortest)
}