Harryxun/stf_run huggingface dataset:
import sys
import numpy as np
import math

def main():
    input = sys.stdin.readline
    abx = list(map(int, input().split()))
    a = abx[0]
    b = abx[1]
    x = abx[2]
    taiseki = a * a * b
    if x <= taiseki / 2:
        y = (2 * x) / (a * b)
        tan = y / b
        theta = np.float64(np.float64(90) - np.rad2deg(np.arctan(tan)))
    else:
        y = (2 * x) / (a * a) - b
        tan = a / (b - y)
        theta = np.float64(np.float64(90) - np.rad2deg(np.arctan(tan)))

    print(theta)

if __name__ == '__main__':
    main()

### FIXED CODE ###

import sys
import numpy as np

def main():
    input = sys.stdin.readline
    abx = list(map(np.float64, input().split()))
    a = abx[0]
    b = abx[1]
    x = abx[2]
    taiseki = a * a * b
    if x <= taiseki / 2:
        y = (2 * x) / (a * b)
        tan = y / b
        theta = np.float64(np.float64(90) - np.rad2deg(np.arctan(tan)))
    else:
        y = (2 * x) / (a * a) - b
        if b - y != 0:
            tan = a / (b - y)
            theta = np.float64(np.float64(90) - np.rad2deg(np.arctan(tan)))
        else:
            theta = 0.


    print(theta)

if __name__ == '__main__':
    main()
a, b = map(int, input().split())

if a <= 0 and b => 0:
    print(0)
elif a > 0 and b > 0:
    print('Positive')
elif a < 0 and b < 0:
    if (b - a + 1) % 2:
        print('Negative')
    else:
        print('Positive')
        

### FIXED CODE ###

a, b = map(int, input().split())

if a <= 0 and b >= 0:
    print("Zero")
elif a > 0 and b > 0:
    print('Positive')
elif a < 0 and b < 0:
    if (b - a + 1) % 2:
        print('Negative')
    else:
        print('Positive')
N,K,*A = map(int, open(0).read().split())
n = min(N, len(A))

def left(i, d):
    if not (0 <= i < n):
        return 0
    v = A[i] - d + 0.5
    if v <= 0:
        return 0 + left(i - 1, d + 1)
    else:
        return 1 + left(i - 1, d + 1)

def right(i, d):
    if not (0 <= i < n):
        return 0
    v = A[i] - d + 0.5
    if v <= 0:
        return 0 + right(i + 1, d + 1)
    else:
        return 1 + right(i + 1, d + 1)

for _ in range(K):
    X = [0 for _ in range(n)]
    for i in range(n):
        l = left(i-1, 1)
        r = right(i+1, 1)
        c = 1 + l + r
        X[i] = c
    if A == X:
        print(" ".join(map(str, A)))
        exit(0)
    A = X

print(" ".join(map(str, A)))

### FIXED CODE ###

N,K,*A = map(int, open(0).read().split())
                                         
for _ in range(K):                       
    b = [0] * N                          
    for i, d in enumerate(A):            
        b[max(0, i-d)] += 1              
        if i+d+1 < N:                    
            b[i+d+1] -= 1                
    for i in range(1, N):                
        b[i] += b[i-1]                   
    if A == b:                           
        break                            
    A = b                                
                                         
print(" ".join(map(str, A)))
from collections import Counter

def make_divisors(n):
    lower_divisors , upper_divisors = [], []
    i = 1
    while i*i <= n:
        if n % i == 0:
            lower_divisors.append(i)
            if i != n // i:
                upper_divisors.append(n//i)
        i += 1
    return lower_divisors + upper_divisors[::-1]

N = int(input())
A = [int(hoge) for hoge in input().split()]
C = Counter(A)
A.sort()
if A[0] == 1:
    if C[1] >= 2:
        print(0)
    else:
        print(1)
    exit()
c = 0
for i in range(100):
    if c >= len(A):
        break
    if A[c] == i:
        newA = [a for a in A if (a==i or a%i)]
        c += C[i]
        A = newA
C = Counter(A)
isyaks = dict()
for n,a in enumerate(A):
    for a in A:
        yakusu = make_divisors(a)
        for y in yakusu:
            if y<=100:
                continue
            if y == a:break
            if y not in isyaks:
                isyaks[y] = [n]
            else:
                isyaks[y].append(n)
kotae = [False] * N
for a in A:
    if C[a] >= 2:
        kotae[a] = True
    if a >100 and a in isyaks:
        yakusus = isyaks[a]
        for y in yakusus:
            kotae[y] = True
print(len(A) - sum(kotae))

### FIXED CODE ###

N = int(input())
A = [int(hoge) for hoge in input().split()]
A.sort()
M = max(A)
dp = [False] * (M+ 1)
ans = 0
prev = -1
for a in A:
    if dp[a] == False:
        for j in range(2,1 + (M// a)):
            dp[a*j] = True
        if a != prev:
            ans += 1
        else:
            dp[a] = True
            ans -= 1
    prev = a
print(ans)
N,M = map(int,input().split())

AC = {}
WA = {}

if M == 0:
    print("0 0")
    exit()
for i in range(M):
    prob,sub = input().split()
    if sub == "WA":
        if (prob in AC) == False:
            if (prob in WA) == False:
                WA[prob] = 1
            else:
                WA[prob] += 1
    
    if sub == "AC":
         if (prob in AC) == False:
            AC[prob] = 1
         else:
            AC[prob] += 1
            
ans_WA = 0
for prob,sub in WA.items:
    if (prob in AC) = True:
        ans_WA += sub
            
print(len(AC.values()),ans_WA)

### FIXED CODE ###

N,M = map(int,input().split())
AC = {}
WA = {}
for i in range(M):
    prb ,ans = input().split()
    if ans == "AC":
        AC[prb] = 1
    else:
        if (prb in WA) == False and (prb in AC) ==  False:
            WA[prb] = 1
        else:
            if (prb in AC) ==  False:
                WA[prb] +=1
wa = 0
for i,v in WA.items():
    if (i in AC):
        wa += v
print("{} {}".format(len(AC),wa))
a = None
b = None
if (a*b)%2 == 1:
  print("Odd")
else:
  print("Even")

### FIXED CODE ###

a, b = map(int, input().split())
if (a*b)%2 == 1:
  print("Odd")
else:
  print("Even")
s = input()
count = 0
for i in range(3):
    if s == 1:
        count = count + 1
    return count

### FIXED CODE ###

a = input()
c=0
for i in range(len(a)):
    if a[i] == '1':
        c = c + 1
print(c)
x,n = map(int,input().split())
if n == 0:
    print(x)
else:
    p = list(map(int,input().split()))
    absolute = list(map(lambda i:abs(i-x),p))
    if 0 not in absolute:
        print(x)
    else:
        ab = set(absolute)
        i = 1
        while i < 100:
            if absolute.count(i) == 2:
                i += 1
            else:
                opt = set([x-i,x+i])
                ans = opt - ab
                break

        print(min(ans))


### FIXED CODE ###

x,n = map(int,input().split())
if n == 0:
    print(x)
else:
    p = list(map(int,input().split()))
    absolute = list(map(lambda i:abs(i-x),p))
    if 0 not in absolute:
        print(x)
    else:
        ab = set(p)
        i = 1
        while i < 100:
            if absolute.count(i) == 2:
                i += 1
            else:
                opt = set([x-i,x+i])
                ans = opt - ab
                break

        print(min(ans))
a = int(input())

if a.islower():
  print('A')
else:
  print('a')

### FIXED CODE ###

a = input()
 
if a.islower():
  print('a')
else:
  print('A')
import sys
input = sys.stdin.readline

N, W = map(int, input().split())
S = [list(map(int, input().split())) for _ in range(N)]

INFTY = -1
MAX_V = 10**5
dp = [[INFTY]*(MAX_V+1) for _ in range(N)]
dp[0][S[0][1]] = S[0][0]

for i in range(1, N):
    w, v = S[i]
    for j in range(v):
        dp[i][j] = dp[i-1][j]

    if dp[i-1][v] == -1:
        dp[i][v] = w
    else:
        dp[i][v] = min(dp[i-1][v], w)

    for j in range(v+1, MAX_V+1):
        if dp[i-1][j] == -1 and dp[i-1][j-v] == -1:
            pass
        elif dp[i-1][j] == -1:
            if dp[i-1][j-v]+w > W:
                pass
            else:
                dp[i][j] = dp[i-1][j-v]+w
        elif dp[i-1][j-w] == -1:
            dp[i][j] = dp[i-1][j]
        else:
            if dp[i-1][j-v]+w > W:
                dp[i][j] = dp[i-1][j]
            else:
                dp[i][j] = min(dp[i-1][j], dp[i-1][j-v]+w)

for i in range(MAX_V, 0, -1):
    if dp[N-1][i] != -1:
        print(i)
        break

### FIXED CODE ###

import sys
input = sys.stdin.readline

N, W = map(int, input().split())
S = [list(map(int, input().split())) for _ in range(N)]

INFTY = -1
MAX_V = 10**5
dp = [[INFTY]*(MAX_V+1) for _ in range(N)]
dp[0][S[0][1]] = S[0][0]

for i in range(1, N):
    w, v = S[i]
    for j in range(v):
        dp[i][j] = dp[i-1][j]

    if dp[i-1][v] == -1:
        dp[i][v] = w
    else:
        dp[i][v] = min(dp[i-1][v], w)

    for j in range(v+1, MAX_V+1):
        if dp[i-1][j] == -1 and dp[i-1][j-v] == -1:
            continue
        elif dp[i-1][j] == -1:
            if dp[i-1][j-v]+w > W:
                continue
            else:
                dp[i][j] = dp[i-1][j-v]+w
        elif dp[i-1][j-v] == -1:
            dp[i][j] = dp[i-1][j]
        else:
            if dp[i-1][j-v]+w > W:
                dp[i][j] = dp[i-1][j]
            else:
                dp[i][j] = min(dp[i-1][j], dp[i-1][j-v]+w)

for i in range(MAX_V, 0, -1):
    if dp[N-1][i] != -1:
        print(i)
        break
(a, b) = [int(x) for x in input().split()]

di = a // b
m = a % b\
df = a / b

print(dl, m, df)

### FIXED CODE ###

(a, b) = [int(x) for x in input().split()]

di = a // b
m = a % b
df = a / b

print('{0} {1} {2:.8f}'.format(di, m, df))
n,m = map(int, input().split())
count = [0]*m
py = []

for i in range(m):
    p,y = map(int, input().split())
    count[p-1] += 1
    py.append([p,y])

li = sorted(py)

for i in range(m):
    num = li.index(py[i]) + 1
    pref = str(py[i][0])
    print("0"*(6-len(pref)) + pref + "0"*(6-len(str(num))) + str(num - sum(count[:py[i][0]-1])))

### FIXED CODE ###

n,m = map(int, input().split())
py = []
for i in range(m):
    p,y = map(int, input().split())
    py.append((p,y,i))
py.sort()
li = [[0]*2 for i in range(m)]
s = 0
t = 0
for p,y,i in py:
    #もしs!=pならその県は初めてなので1番目、違うならそこから+1
    if s != p:
        s = p
        t = 1
    else:
        t += 1
    li[i][0] = s
    li[i][1] = t
for i in range(m):
    print(str(li[i][0]).zfill(6) + str(li[i][1]).zfill(6))
from heapq import*
n=int(input())
a=[-int(e)for e in input().split()]
r=0
heapify(a)
while 1:
	x=heappop(a)
	if x>-n:break
	c=-x//n
	x+=c*n
	for _ in range(n-1):a[i]-=c
	heappush(a,x)
	r+=c
print(r)

### FIXED CODE ###

#!/usr/bin/python
from heapq import*
n=int(input())
a=[-int(e)for e in input().split()]
r=0
heapify(a)
while 1:
	x=heappop(a)
	if x>-n:break
	c=-x//n
	x+=c*n
	a=[e-c for e in a]
	heappush(a,x)
	r+=c
print(r)
import math
num=list(map(int,input().split()))
A=num[0]
B=num[1]
print(A*B//math.gcd(A,B))

### FIXED CODE ###

def gcd(a,b):
  while b!=0:
    a,b=b,a%b
  return a
def lcm(a,b):
  return a*b//gcd(a,b)

num=list(map(int,input().split()))
A=num[0]
B=num[1]
S=lcm(A,B)
print(S)
N, K = [int(i) for i in input().split()]
A = [int(i) for i in input().split()]
check = [0]*N
ima = 0
for i in range(K):
  if check[A[ima]-1] != 0:
    loopen = ima
    check[ima] = i+1
    looplen = check[ima] - check[A[ima]-1] + 1
    loopend = i
    break
  check[ima] = i+1
  ima = A[ima]-1
offset = (K-(i-looplen)-1)%looplen
ima = 0
for i in range(loopend-looplen+offset+1):
  ima = A[ima]-1
print(ima+1)


### FIXED CODE ###

N, K = [int(i) for i in input().split()]
A = [int(i) for i in input().split()]
check = [0]*N
ima = 0

for i in range(K):
  if check[A[ima]-1] != 0:
    loopen = ima
    check[ima] = i+1
    looplen = check[ima] - check[A[ima]-1] + 1
    loopend = i
    break
  if i == K-1:
    print(A[ima])
    exit()
  check[ima] = i+1
  ima = A[ima]-1

offset = (K-(i-looplen)-1)%looplen
ima = 0
for i in range(loopend-looplen+offset+1):
  ima = A[ima]-1
print(ima+1)
from bisect import insort
N,M = map(int,input().split())
A = (list(map(int,input().split())))
A.sort()
for i in range(M):
  mx = A.pop()
  insert_index = bisect.bisect_left(A,mx//2)
  A.insert(insert_index,mx//2)
print(sum(A))
  

### FIXED CODE ###

N,M = map(int,input().split())
A = list(map(lambda x: int(x)*(-1),input().split()))
import heapq
heapq.heapify(A)
for i in range(M):
  B = heapq.heappop(A)
  heapq.heappush(A,-1*((-B)//2))
print(-sum(A))
N, R = input().split()
print(R if 10>=N else R+100*(10-N))

### FIXED CODE ###

N, R = map(int, input().split())
if N >= 10:
    print(R)
else:
    print(R + 100*(10-N))
import math
import sys
import collections
def main():
    N=int(input())
    Tr=tuple(input())
    R=[]
    G=[]
    B=[]
    for i in range(N):
       if Tr[i]=="R":
           R.append(i)
       if Tr[i]=="G":
           G.append(i)
       if Tr[i]=="B":
           B.append(i)
    cnt=0
    if len(R)==max(len(R),len(G),len(B))
        for i in B:
            for j in G:
                for k in R:
                    if max(i,j,k)-(i+j+k-max(i,j,k)-min(i,j,k))!=(i+j+k-max(i,j,k)-min(i,j,k))-min(i,j,k):
                        cnt+=1

        print(cnt)
    if len(G) == max(len(R), len(G), len(B))
        for i in B:
            for j in R:
                for k in G:
                    if max(i, j, k) - (i + j + k - max(i, j, k) - min(i, j, k)) != (
                            i + j + k - max(i, j, k) - min(i, j, k)) - min(i, j, k):
                        cnt += 1

        print(cnt)
    if len(B) == max(len(R), len(G), len(B))
        for i in R:
            for j in G:
                for k in B:
                    if max(i, j, k) - (i + j + k - max(i, j, k) - min(i, j, k)) != (
                            i + j + k - max(i, j, k) - min(i, j, k)) - min(i, j, k):
                        cnt += 1

        print(cnt)



if __name__ == '__main__':
    main()

### FIXED CODE ###

import math
import sys
import collections

def main():
    N=int(input())
    Tr=list(input())
    R=[]
    G=[]
    B=[]
    for i in range(N):
       if Tr[i]=="R":
           R.append(i)
           continue
       if Tr[i]=="G":
           G.append(i)
           continue
       if Tr[i]=="B":
           B.append(i)
           continue
    cnt=len(R)*len(G)*len(B)
    for j in range(N):
        for i in range(j):
            if 2*j-i<=N-1:
                if Tr[2*j-i]!=Tr[i] and Tr[2*j-i]!=Tr[j] and Tr[j]!=Tr[i]:
                    cnt-=1
    print(cnt)
if __name__ == '__main__':
    main()
x,y = map(int,input().split())
if x-y == 0:
  print("Yes")
 else:
  print("No")
    

### FIXED CODE ###

x,y = map(int,input().split())
if x-y == 0:
  print("Yes")
else:
  print("No")
def main():
    n = int(input())
    if n%2:
        print("No")
        return
    sl = [None]*n
    for i in range(n):
        height, mi = 0, 0
        for si in input():
            if si == "(":
                height += 1
                mi = min(mi, height)
            else:
                height -= 1
                mi = min(mi, height)
            
        sl[i] = [mi, height]
    slup = [si for si in sl if si[1] >= 0 and si[0] >= 0]
    slup.sort(key = lambda x: -x[1])
    slmiddle = [si for si in sl if si[i] >= 0 and si[0] < 0]
    slmiddle.sort(key = lambda x: x[0])
    sldown = [si for si in sl if si[1] < 0]
    sldown.sort(key = lambda x: x[0])
    h = 0
    for si in slup:
        if h < 0 :
            print("No")
            return
        h += si[1]
    for si in slmiddle:
        if h < 0 or h+si[0] < 0:
            print("No")
            return
        h += si[1]
    for si in sldown:
        if h < 0 or h+si[0] < 0:
            print("No")
            return
        h += si[1]
    if h == 0:
        print("Yes")
    else:
        print("No")
        

if __name__ == "__main__":
    main()

### FIXED CODE ###

def main():
    n = int(input())
    if n == 0:
        print("Yes")
        return
    slup = []
    sldown = []
    for i in range(n):
        height, mi = 0, 0
        for si in input():
            if si == "(":
                height += 1
            else:
                height -= 1
                mi = min(mi, height)
        if height >= 0:
            slup.append([mi, height])
        else:
            sldown.append([mi-height, -height])

    slup.sort(reverse=True)
    sldown.sort(reverse=True)
    if sum([si[1] for si in slup]) + sum([-si[1] for si in sldown]):
        print("No")
        return
    h = 0
    for si in slup:
        if h+si[0] < 0:
            print("No")
            return
        h += si[1]
    h = 0
    for si in sldown:
        if h+si[0] < 0:
            print("No")
            return
        h += si[1]
    print("Yes")
        

if __name__ == "__main__":
    main()
n=int(input())
flag=False
for i in range(int(n/4)+1):
    for j in range(int(n/7)+1):
        if(i*4+j*7==n):
            flag=True

if(flag==True):
    print("Yes")
else:
    print("No")


### FIXED CODE ###

n,k=map(int,input().split())
if(n%k==0):
    print("0")
else:
    print("1")
print((int(input()-1)//2)

### FIXED CODE ###

print((int(input())-1)//2)
from collections import defaultdict
import math


def f(n, k):
    base = 2 ** k
    syou = n // base
    amari = n % base
    q = max(0, amari - (base // 2) + 1)
    res1 = syou * (base // 2) + q
    return res1 % 2


def g(n):  # nを累計xorで表現
    if n == 0:
        return "0"
    keta = int(math.log2(n) + 1)
    s = ""
    for i in range(keta):
        s = str(f(n, i + 1)) + s
    return s


def xor(a, b):
    max_len = max(len(a), len(b))
    a = (("0" * max_len) + a)[-max_len:]
    b = (("0" * max_len) + b)[-max_len:]

    s = ""
    for i in range(max_len):
        if a[i] != b[i]:
            s += "1"
        else:
            s += "0"
    return s


def to10(s):
    res = 0
    for c in s:
        res *= 2
        if c == "1":
            res += 1
    return res


def main():
    n, m = [int(q) for q in input().split()]
    A = g(n - 1)
    B = g(m)
    res = xor(A, B)
    print(to10(res))


if __name__ == '__main__':
    main()


### FIXED CODE ###

from collections import defaultdict
import math


def f(n, k):
    base = 2 ** k
    syou = n // base
    amari = n % base
    q = max(0, amari - (base // 2) + 1)
    res1 = syou * (base // 2) + q
    return res1 % 2


def g(n):  # nを累計xorで表現
    if n <= 0:
        return "0"
    keta = int(math.log2(n) + 1)
    s = ""
    for i in range(keta):
        s = str(f(n, i + 1)) + s
    return s


def xor(a, b):
    max_len = max(len(a), len(b))
    a = (("0" * max_len) + a)[-max_len:]
    b = (("0" * max_len) + b)[-max_len:]

    s = ""
    for i in range(max_len):
        if a[i] != b[i]:
            s += "1"
        else:
            s += "0"
    return s


def to10(s):
    res = 0
    for c in s:
        res *= 2
        if c == "1":
            res += 1
    return res


def main():
    n, m = [int(q) for q in input().split()]
    A = g(n - 1)
    B = g(m)
    res = xor(A, B)
    print(to10(res))


if __name__ == '__main__':
    main()
N, Y = map(int, input().split())
for x in range(0,N)
	for y in range(0,N-x)
		if N-x<0
			break
		for z in range(0,N-x-y)
			if N-x-y<0
    			break
   			if Y==10000*x+5000*y+1000*z:
    			print(x,y,z)
    			break
print(-1,-1,-1)

### FIXED CODE ###

N, Y = map(int, input().split())
 
for x in range(N+1):
  for y in range(N-x+1):
    z = N - x - y
    if 10000 * x + 5000 * y + 1000 * z == Y:
      print(x,y,z)
      exit()
print(-1,-1,-1)
from sys import stdin
import math

a, b, x = [int(x) for x in stdin.readline().rstrip().split()]

if 2 * x >= (a ** 2) * b:
    v = (a ** 2) * b - x
    c = (2 * v) / (a ** 2)
    print(90 - math.atan(a / c) * 180 / math.pi)
else:
    c = 2 * x / (a * b)
    print(math.atan(b / c) * 180 / math.pi)


### FIXED CODE ###

from sys import stdin
import math

a, b, x = [int(x) for x in stdin.readline().rstrip().split()]

if x == (a ** 2) * b:
    print(0)
    exit()
if 2 * x >= (a ** 2) * b:
    v = (a ** 2) * b - x
    c = (2 * v) / (a ** 2)
    print(90 - math.atan(a / c) * 180 / math.pi)
else:
    c = 2 * x / (a * b)
    print(math.atan(b / c) * 180 / math.pi)
#6
H,W = map(int,input().split())
k = H*W
if k%2 == 0:
    print(int(k/2)
else:
    print(int(k/2)+1)

### FIXED CODE ###

#6
import sys
H,W = map(int,input().split())
k = H*W

if H ==1 or W == 1:
    print(1)
    sys.exit()

if k%2 == 0:
    print(int(k/2))
else:
    print(int(k/2)+1)
def input_num(infile):
	num = int(infile.readline())
	return num

def makedict(infile,outfile,n):
	dict = {}
	for i in range(n):
		key,val = infile.readline().split()
		dict[key] = val
	return dict

def replace(infile,outfile,dict,m):
	for i in range(m):
		x = infile.readline().sprit()[0]
		outfile.write(dict.get(x,x))
	print >> outfile

if __name__ == "__main__"
	import sys
	while True:
		n = input_num(sys.stdin)
		if n == 0:
			break
		dictionary = makedict(sys.stdin,sys.stdout,n)
		# dict.update(makedict(infile,outfile,n))
		m = input_num(sys.stdin)
		replace(sys.stdin,sys.stdout,dictionary,m)

### FIXED CODE ###

def convert(infile, outfile, n):
    dictionary = {}
    for i in range(n):
        key, val = infile.readline().split()
        dictionary[key]=val
    m = int(infile.readline())
    for j in range(m):
        x = infile.readline().split()[0]
        outfile.write(dictionary.get(x, x))
    print >> outfile
 
def run(infile, outfile):
    while True:
        n = int(infile.readline())
        if n == 0:
            break
        convert(infile, outfile, n)
 
if __name__ == "__main__":
    import sys
    run(sys.stdin, sys.stdout)
import bisect
x,n=map(int,input().split())
l=list(map(int,input().split()))
k=[0]*(101)
for i in l:
    k[i]=1
s=10000
for i in range(1,101):
    if k[i]==1:
        continue
    if abs(x-i)<s:
        s=abs(x-i)
        ans=i
print(ans)
    


### FIXED CODE ###

import bisect
x,n=map(int,input().split())
l=list(map(int,input().split()))
k=[0]*(102)
for i in l:
    k[i]=1
s=10000
for i in range(102):
    if k[i]==1:
        continue
    if abs(x-i)<s:
        s=abs(x-i)
        ans=i
print(ans)
# -*- coding: utf-8 -*-
import math

a,b,c,d=map(int, input().split())

n_c = b//c - a//c
n_d = b//d - a//d
#print("n_c: ", n_c)
#print("n_d: ", n_d)

cd = c*d//math.gcd(c,d)
n_cd = b//cd - a//cd
#print("n_cd: ", n_cd)

n_ab = b+1-a
#print("n_ab: ", n_ab)

print(n_ab-(n_c+n_d)+n_cd)



### FIXED CODE ###

# -*- coding: utf-8 -*-
import fractions

a,b,c,d=map(int, input().split())

n_c = b//c - (a-1)//c
n_d = b//d - (a-1)//d
#print("n_c: ", n_c)
#print("n_d: ", n_d)

cd = c*d//fractions.gcd(c,d)
n_cd = b//cd - (a-1)//cd
#print("n_cd: ", n_cd)

n_ab = b+1-a
#print("n_ab: ", n_ab)

print(n_ab-(n_c+n_d)+n_cd)
#!/usr/bin/env python3
# coding: utf-8
import time

def main():
    N, K, C = map(int, input().split())
    S = dict(enumerate(str(input()), 1))

    time.sleep(0.05 * len(N))
if __name__ == "__main__":
    main()

### FIXED CODE ###

#!/usr/bin/env python3
# coding: utf-8

def debug(arg):
    if __debug__:
        pass
    else:
        import sys
        print(arg, file=sys.stderr)
        
def main():
    N, K, C = map(int, input().split())
    S = dict(enumerate(str(input()), 1))

    sr = list(k for k, v in S.items() if v == 'o')
    sl = list(reversed(sr.copy()))

    debug(sr)
    debug(sl)

    l = [sl.pop()]
    r = [sr.pop()]
    
    for x in range(1, K):
        while True:
            ll = sl.pop()
            if ll > l[x - 1] + C:
                l.append(ll)
                break
        while True:
            rr = sr.pop()
            if rr < r[x - 1] - C:
                r.append(rr)
                break

    debug(r)
    debug(l)

    # a = sorted(set(l) & set(r))

    # debug(a)
    # for aa in a:
    #     print(aa)
    
    for ll, rr in zip(l, sorted(r)):
        if ll == rr:
            print(ll)

if __name__ == "__main__":
    main()
N = int(input())
L = []
for i in range(N):
  P = int(input())
  L.append(P)
  
F = 0

A = 0

for i in range(N):
  for j in range(1, i):
    if L[j] < L[i]:
      F = 0
      break
    else:
      F = 1
  if(F == 1):
    A += 1

print(A+1)

### FIXED CODE ###

N = int(input())
d = list(map(int, input().split()))

c = 1
a = d[0]

for i in range(1,N):
  if d[i] <= a:
    c += 1
    a = d[i]

print(c)
N = int(input())
M = int(input())
A = list(map(int(input().split)))
a = sum(A)
ans = N -a
if  ans >= 0:
    print(ans)
else:
    print(-1)
    
        


### FIXED CODE ###

N,M = map(int, input().split())
A = list(map(int, input().split()))
a = sum(A)
ans = N -a
if ans >= 0:
    print(ans)
else:
    print(-1)