import math

def begin1(a):
    return 4*a

def begin2(a):
    return a * a

def begin3(a,b):
    return a*b, 2*(a + b)

def begin4(d):
    return d*3.14

def begin5(a):
    return a*a*a, 6*a*a

def begin6(a, b, c):
    return a*b*c, 2*(a*b + b*c + a*c)

def begin7(r):
    return 6.28*r, 3.14*(r*r)

def begin8(a, b):
    return (a+b)/2

def begin9(a, b):
    return math.sqrt(a*b)

def begin10(num1, num2):
    return num1+num2, num1-num2, num1*num2, math.sqrt(num1)/math.sqrt(num2)

def begin11(num1, num2):
    return num1+num2, num1-num2, num1*num2, abs(num1)/abs(num2)

def begin12(a, b):
    c = math.sqrt(a*a + b*b)
    return c, a+b+c

def begin13(r1, r2):
    s1 = 3.14*(r1*r1)
    s2 = 3.14*(r2*r2)
    s3 = abs(s1-s2)

    return s1,s2,s3

def begin14(l):
    r = l/6.18
    s = 3.14*(r*r)

    return r,s

def begin15(s):
    d = math.sqrt(s/3.14)*2
    l = 3.14*d

    return d,l

def begin16(x1,x2):
    return abs(x1-x2)

def begin17(a, b, c):
    longac = abs(a-c)
    longbc = abs(b-c)

    return longac, longbc, longac+longbc

def begin18(a, b, c):
    longac = abs(a-c)
    longbc = abs(b-c)

    return longac*longbc

def begin19(x1, y1, x2, y2):
    sideup = abs(x2-x1)
    sideleft = abs(y2-y1)

    return 2*sideup + 2*sideleft, sideup*sideleft

def begin20(x1, x2, y1, y2):
    return math.sqrt(abs(x2-x1)*abs(x2-x1) + abs(y2-y1)*abs(y2-y1))

def begin21(x1, y1, x2, y2, x3, y3):
    a = begin20(x1, x2, y1, y2)
    b = begin20(x2, x3, y2, y3)
    c = begin20(x1, x3, y1, y3)
    p = (a + b + c) / 2

    return math.sqrt(p*(p-a)*(p-b)*(p-c))

def begin22(a, b):
    return b, a

def begin23(a, b, c):
    return b, c, a

def begin25(x):
    return 3*(math.pow(x, 6))-6*(x*x)-7

def begin30(a):
    return a*(180/3.14)

def begin35(v, u, t1, t2):
    return (v*t1) + (v-u)*t2

def begin40(a1, b1, c1, a2, b2, c2):
    d = (a1 * b2) - (a2 * b1)

    x = (c1 * b2 - c2 * b1) / d
    y = (a1 * c2 - a2 * c1) / d

    return x, y

def integer1(l):
    return int(l/100)

def integer5(a, b):
    return a%b

def integer10(num):
    return int(str(num)[-1]), int(str(num)[-2])

def integer15(num):
    return int(str(num)[1] + str(num)[0] + str(num)[-1])

def integer20(n):
    return int(n%3600)

def integer25(k):
    return (k%7)-1

def integer30(year):
    if year%100 == 0:
        return year/100
    return year/100 + 1

def boolean1(a):
    if a >= 0:
        return True
    return False

def boolean5(a, b):
    if a >= 0 or b < -2:
        return True
    return False

def boolean10(a, b):
    if a+b % 2 != 0:
        return True
    return False

def boolean15(a, b, c):
    more = 0
    if a > 0:
        more += 1
    if b > 0:
        more += 1
    if c > 0:
        more += 1

    if more == 2:
        return True
    return False

def boolean20(num):
    num = str(num)
    if num[0] != num[1] and num[0] != num[2] and num[1] != num[2]:
        return True
    return False

def boolean25(x, y):
    if x > 0 and y > 0:
        return True
    return False

def boolean30(a, b, c):
    if a == b == c:
        return True
    return False

def boolean35(x1, y1, x2, y2):
    if x1+y1 % 2 == x2+y2 % 2:
        return True
    return False

def boolean40(x1, y1, x2, y2):
    if abs((x1+y1)-(x2+y2)) in [3, 1, 2, 4]:
        return True
    return False

def if1(num):
    if num > 0:
        return num+1
    return num

def if5(num1, num2, num3):
    all = [num1, num2, num3]
    more = 0
    less = 0
    for i in all:
        if i >= 0:
            more+=1
        else:
            less+=1

    return more, less

def if10(a, b):
    if a != b:
        return a+b, a+b
    return 0, 0

def if15(num1, num2, num3):
    all = [num1, num2, num3]
    all.remove(max(num1, num2, num3))
    all.remove(min(num1, num2, num3))

    return max(num1, num2, num3) + all[0]

def if20(a, b, c):

    #points = {a: 'a', b: 'b', c: 'c'}
    #return points[min(b-a, c-a)+a], min(b-a, c-a)

    return min(b-a, c-a)+a, min(b-a, c-a)

def if25(x):
    if x < -2 and x > 2:
        return x * 2
    else:
        return -3 * x

def if30(num):
    two = {True: 'нечетное ', False: 'четное '}
    onetwo = {1: 'однозначное', 2: 'двухзначное', 3: 'трехзначное'}

    return two[num%2] + onetwo[len(str(num))]