package main
import (
"bufio"
"fmt"
"os"
"strconv"
)
func main() {
fsc := NewFastScanner()
S := fsc.Next()
if S[0] == S[2] {
fmt.Println("Yes")
} else {
fmt.Println("No")
}
}
//template
type FastScanner struct {
r *bufio.Reader
buf []byte
p int
}
func NewFastScanner() *FastScanner {
rdr := bufio.NewReaderSize(os.Stdin, 1024)
return &FastScanner{r: rdr}
}
func (s *FastScanner) Next() string {
s.pre()
start := s.p
for ; s.p < len(s.buf); s.p++ {
if s.buf[s.p] == ' ' {
break
}
}
result := string(s.buf[start:s.p])
s.p++
return result
}
func (s *FastScanner) NextLine() string {
s.pre()
start := s.p
s.p = len(s.buf)
return string(s.buf[start:])
}
func (s *FastScanner) NextInt() int {
v, _ := strconv.Atoi(s.Next())
return v
}
func (s *FastScanner) NextInt64() int64 {
v, _ := strconv.ParseInt(s.Next(), 10, 64)
return v
}
func (s *FastScanner) pre() {
if s.p >= len(s.buf) {
s.readLine()
s.p = 0
}
}
func (s *FastScanner) readLine() {
s.buf = make([]byte, 0)
for {
l, p, e := s.r.ReadLine()
if e != nil {
panic(e)
}
s.buf = append(s.buf, l...)
if !p {
break
}
}
}
//Max,Min
func IntMax(a, b int) int {
if a < b {
return b
}
return a
}
func Int64Max(a, b int64) int64 {
if a < b {
return b
}
return a
}
func Float64Max(a, b float64) float64 {
if a < b {
return b
}
return a
}
func IntMin(a, b int) int {
if a > b {
return b
}
return a
}
func Int64Min(a, b int64) int64 {
if a > b {
return b
}
return a
}
func Float64Min(a, b float64) float64 {
if a > b {
return b
}
return a
}
//Gcd
func IntGcd(a, b int) int {
if a < b {
b, a = a, b
}
if b == 0 {
return a
}
return IntGcd(b, a%b)
}
func Int64Gcd(a, b int64) int64 {
if a < b {
b, a = a, b
}
if b == 0 {
return a
}
return Int64Gcd(b, a%b)
}
func IntAbs(a int) int {
if a < 0 {
a *= -1
}
return a
}
func Int64Abs(a int64) int64 {
if a < 0 {
a *= -1
}
return a
}