Go: package main

import (
	"bufio"
	"fmt"
	"os"
	"strconv"
	"strings"
)

var sc = bufio.NewScanner(os.Stdin)

func main() {
	var num int
	fmt.Scan(&num)

	for i := 0; i < num; i++ {
		sc.Scan()
		line := sc.Text()

		insertCheck(line)
	}
}

func insertCheck(line string) {
	var B, C []int

	for _, v := range strings.Split(line, " ") {
		ball, _ := strconv.Atoi(v)
		switch {
		case len(B) == 0:
			B = append(B, ball)
		case B[len(B)-1] < ball:
			B = append(B, ball)
		case B[len(B)-1] >= ball:
			switch {
			case len(C) == 0:
				C = append(C, ball)
			case C[len(C)-1] < ball:
				C = append(C, ball)
			case C[len(C)-1] >= ball:
				fmt.Println("NO")
				return
			}
		}
	}
	fmt.Println("YES")
}

Python: # -*- coding: utf-8 -*-

import sys
sys.setrecursionlimit(10**6)

"""
def dfs(balls,B=-1,C=-2,cp=0):
	if cp==len(balls): 	return True
	ball = balls[cp]
	if B<ball:
		is_find = dfs(balls,ball,C,cp+1)
		if is_find: return True
	if C<ball:
		is_find = dfs(balls,B,ball,cp+1)
		if is_find: return True
	return False
"""

def dfs(balls,B=-2,C=-1,cp=0):
	if cp==len(balls): 	return True
	if C<balls[cp] and dfs(balls,B,balls[cp],cp+1): return True
	if B<balls[cp] and dfs(balls,balls[cp],B,cp+1): return True
	return False

def main():
	N = int(input().strip())
	for _ in range(N):
		balls = list(map(int,input().split(' ')))
		is_find = dfs(balls)
		if is_find:		print('YES')
		else:			print('NO')

if __name__=='__main__':
	main()

"""
2
3 1 4 2 5 6 7 8 9 10
10 9 8 7 6 5 4 3 2 1
"""

Python: n = int(input())
def bi(ball, i, x, y):
    # print(i, len(x), len(y))
    if i != 10:
        x2, y2 = x + [ball[i]], y + [ball[i]]
        bi(ball, i + 1, x2, y)
        bi(ball, i + 1, x, y2)
    else:
        nx = x[:]
        ny = y[:]
        x.sort(), y.sort()
        if nx == x and ny == y:
            global ans
            ans = 'YES'
            # print(nx, ny)

for i in range(n):
    ans = 'NO'
    ball = list(map(int, input().split()))
    bi(ball, 0, [], [])
    print(ans)

Python: for i in range(int(input())):
	a=b=c=0
	for j in map(int,input().split()):
		if j > b:
			b=j
		elif j > c: 
			c=j
		else: 
			a=1
	if a==0:
		print('YES')
	else:
		print('NO')

Python: class Depth_First_Search:
    def __init__(self, bolls):
        self.bolls = bolls
        self.possible = False

    def search(self, left, right, remaining):
        if len(remaining) == 0:
            self.possible = True
        else:
            boll = remaining.pop(0)
            if boll > max(left):
                self.search(left+[boll], right, remaining)
            if boll > max(right):
                self.search(left, right+[boll], remaining)

    def run(self):
        self.search([-1], [-1], self.bolls)

if __name__ == '__main__':
    N = int(input())
    for i in range(N):
        bolls = list(map(int, input().split(' ')))
        DFS = Depth_First_Search(bolls)
        DFS.run()
        if DFS.possible:
            print('YES')
        else:
            print('NO')

Python: n = int(input())
for i in range(n):
    arr = map(int, input().split())
    b,c = 0,0
    for i in range(len(arr)):
        if b < arr[i]:
            b = arr[i]
            continue
        if c < arr[i]:
            c = arr[i]
            continue
        print("NO")
        break
    else:
        print("YES")

Python: import sys
sys.setrecursionlimit(100000)

def load_balls():
	LINE_NUM, TOTAL = 0, 0
	balls = []
	i = 0
	for line in sys.stdin:
		line = line.strip()
		LINE_NUM += 1
		if LINE_NUM == 1:
			TOTAL = int(line.strip())
			continue
		balls.append([int(i) for i in line.split(" ")])
		if LINE_NUM == TOTAL+1: break
	return balls

class VesselClass:

	def __init__(self):
		self.tmp = []
		self.left = [0]
		self.right = [0]

	def fill(self, balls:list):
		self.tmp = balls

	def DFS(self):
		if len(self.tmp) == 0: print("YES")
		elif self.left[-1] < self.tmp[0]:
			self.left.append(self.tmp[0])
			self.tmp.pop(0)
			self.DFS()
		elif self.right[-1] < self.tmp[0]:
			self.right.append(self.tmp[0])
			self.tmp.pop(0)
			self.DFS()
		else: print("NO")

balls_list = load_balls()
Vessel = VesselClass()
for balls in balls_list:
	Vessel.fill(balls)
	Vessel.DFS()

Python: def load_balls():
	LINE_NUM, TOTAL = 0, 0
	balls = []
	i = 0
	for line in sys.stdin:
		line = line.strip()
		LINE_NUM += 1
		if LINE_NUM == 1:
			TOTAL = int(line.strip())
			continue
		balls.append([int(i) for i in line.split(" ")])
		if LINE_NUM == TOTAL+1: break
	return balls

class VesselClass:

	def __init__(self):
		self.BALL_NUM = 10
		self.tmp = []
		self.left = [0]
		self.right = [0]

	def fill(self, balls:list):
		self.tmp = balls

	def DFS(self):
		if len(self.tmp) == 0: print("Yes")
		elif self.left[-1] < self.tmp[0]:
			self.left.append(self.tmp[0])
			self.tmp.pop(0)
			self.DFS()
		elif self.right[-1] < self.tmp[0]:
			self.right.append(self.tmp[0])
			self.tmp.pop(0)
			self.DFS()
		else: print("No")

balls_list = load_balls()
Vessel = VesselClass()
for balls in balls_list:
	Vessel.fill(balls)
	Vessel.DFS()

Python: # -*- coding: utf-8 -*-

import sys
sys.setrecursionlimit(10**6)

def dfs(balls,B=-1,C=-2,cp=0):
	if cp==len(balls): 	return True
	ball = balls[cp]
	if B<ball:
		is_find = dfs(balls,ball,C,cp+1)
		if is_find: return True
	if C<ball:
		is_find = dfs(balls,B,ball,cp+1)
		if is_find: return True
	return False

def not_dfs(balls):
	B, C = -2, -1
	for ball in balls:
		if C<ball:
			C = ball
			continue
		if B<ball:
			B = ball
			continue
		return False
	return True

def main():
	N = int(input().strip())
	for _ in range(N):
		balls = list(map(int,input().split(' ')))
#		is_find = dfs(balls)
		is_find = not_dfs(balls)
		if is_find:		print('YES')
		else:			print('NO')

if __name__=='__main__':
	main()

"""
2
3 1 4 2 5 6 7 8 9 10
10 9 8 7 6 5 4 3 2 1
"""

Python: def dfs(i, b, c):
    if i == 11:
        return (b == sorted(b) and c == sorted(c))

    if dfs(i + 1, b + [balls[i - 1]], c):
        return True

    if dfs(i + 1, b, c + [balls[i - 1]]):
        return True

    return False


if __name__ == '__main__':
    N = int(input())
    for i in range(N):
        balls = list(map(int, input().split()))
        if dfs(1, [], []):
            print("YES")
        else:
            print("NO")

Python: from sys import stdin

for _ in range(int(stdin.readline())):
    s = list(map(int, stdin.readline().split()))
    a = 0
    b = 0
    for c in s:
        if a<c: a=c
        elif b<c: b=c
        else:
            print("NO")
            break
    else:
        print("YES")

Python: n = int(input())
for l in range(n):
    a = [int(i) for i in input().split()]
    b = 0
    c = 0
    ans = "YES"
    for i in range(10):
        if a[i] > b:
             b= a[i]
        elif a[i] > c:
            c = a[i]
        else:
            ans = "NO"
    print(ans)

Python: ans=0
def solve(n,left,right):
    global ans
    if n==10:
        ans=1
    else:
        if a[n]>left:
            ans=solve(n+1,a[n],right)
        if a[n]>right:
            ans=solve(n+1,left,a[n])
    return ans

n=int(input())
for _ in range(n):
    a=[int(i) for i in input().split()]
    print("YES" if solve(0,0,0) else "NO")
    ans=0

Python: import sys

def stackBall(stackB, stackC, ball):
	if len(ball) == 0:
		return True
	if len(stackB) == 0 or stackB[-1] < ball[0]:
		stackB.append(ball.pop(0))
		if stackBall(stackB, stackC, ball):
			return True
	if len(stackC) == 0 or stackC[-1] < ball[0]:
		stackC.append(ball.pop(0))
		if stackBall(stackB, stackC, ball):
			return True
	return False

n = input()

for s in sys.stdin:
	ball = list(map(int, s.split()))
	if stackBall([], [], ball):
		print("YES")
	else:
		print("NO")

Python: n = int(input())
for i in range(n):
    l = list(map(int, input().split()))
    x = y = z = 0
    for j in l:
        if j > y:
            y = j
        elif j > z:
            z = j
        else:
            x = 1
    print(["YES", "NO"][x])