Problem:
 Score : 100 points    Problem Statement You are given two integers a and b .
Determine if a+b=15 or a\times b=15 or neither holds.  Note that a+b=15 and a\times b=15 do not hold at the same time.      Constraints  1 \leq a,b \leq 15  All values in input are integers.         Input Input is given from Standard Input in the following format:  a  b       Output If a+b=15 , print + ;
if a\times b=15 , print * ;
if neither holds, print x .        Sample Input 1 4 11      Sample Output 1 +  4+11=15 .       Sample Input 2 3 5      Sample Output 2 *  3\times 5=15 .       Sample Input 3 1 1      Sample Output 3 x  1+1=2 and 1\times 1=1 , neither of which is 15 .

Solution (Python):
a,b = map(int, input().split())
if a + b == 15:
	print("+")
elif a * b == 15:
	print("*")
else:
	print("x")

Solution (Python):



a, b = map(int, input().split())
if a + b == 15:
    print('+')
elif a * b == 15:
    print('*')
else:
    print('x')

Solution (Python):
if __name__ == '__main__':
    a, b = map(int, input().split())
    if a + b == 15: 
        print('+')
    elif a * b == 15:
        print('*')
    else:
        print('x')

Solution (Python):
def main():
    a, b = map(int, raw_input().split(' '))
    if a + b == 15:
        print '+'
    elif a * b == 15:
        print '*'
    else:
        print 'x'

main()

Solution (Python):
a, b = map(int, input().split())

if a + b == 15:
    print("+")
elif a * b == 15:
    print("*")
else:
    print("x")

Solution (Python):
ab = input()
mapped_ab  = map(int, ab.split())
listed_ab = list(mapped_ab)
if sum(listed_ab)==15:
    print("+")
elif (listed_ab[0]*listed_ab[1])==15:
    print("*")
else:
    print("x")

Solution (Python):

line = input().split()

a = int(line[0])
b = int(line[1])

if a * b == 15:
    print("*")
elif a +b == 15:
    print("+")
else:
    print("x")

Solution (Python):
a,b = map(int,input().split())
if a+b == 15:
  print('+')
elif a*b == 15:
  print('*')
else:
  print('x')

Solution (Python):
a, b = map(int, input().split())
if a + b == 15:
    print("+")
elif a * b == 15:
    print("*")
else:
    print("x")

Solution (Python):
a,b = map(int,input().split())
if a+b == 15 :
  print("+")
elif a*b == 15 :
  print("*")
else :
  print("x")

Solution (Python):
a,b=map(int,input().split())
if a+b==15:
    print('+')
elif a*b==15:
    print('*')
else:
    print('x')

Solution (Python):
a, b = map(int, input().split())

if a + b == 15:
  print('+')
elif a * b == 15:
  print('*')
else:
  print('x')

Solution (Python):
a,b = map(int,input().split(" "))

if a + b == 15:
  print('+')
elif a * b == 15:
  print('*')
else:
  print('x')

Solution (Python):
a, b = map(int,input().split())

if a+b == 15:
	print('+')

if a*b == 15:
	print('*')

if a+b != 15 and a*b != 15:
	print('x')

Solution (Python):
a,b=[int(x) for x in input().split()]
if a+b==15:
    print("+")
elif a*b==15:
    print("*")
else:
    print("x")

Solution (Python):
from sys import stdin

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

if a+b == 15:
    s = '+'
elif a * b == 15:
    s = '*'
else:
    s = 'x'
print(s)

Solution (Python):
a, b = map(int,input().split())
if(a+b == 15):
    print("+")
elif(a*b == 15):
    print("*")
else:
    print("x")

Solution (Python):
a,b=map(int,input().split())
if a+b==15:
    print("+")
else:
    print("*" if a*b==15 else "x")

Solution (Python):
a,b=map(int,input().split())
if a+b==15:
    print("+")
elif a*b==15:
    print("*")
else:
    print("x")

Solution (Python):
a, b = (int(i) for i in input().split())

r = 'x'
if (a + b) == 15:
    r = '+'
elif (a * b) == 15:
    r = '*'

print(r)

Solution (Python):
a, b = map(int, input().split())
if a+b==15:
    print('+')
elif a*b==15:
    print('*')
else:
    print('x')

Solution (Python):
a, b = map(int, input().split())

if a + b == 15:
	print("+")

elif a * b == 15:
	print("*")

else:
	print("x")

Solution (Python):
a = list(map(int, input().split()))

out = 'x'

if (a[0] + a[1] == 15):
    out = '+'
elif (a[0] * a[1] == 15):
    out = '*'

print(out)

Solution (Python):
a,b = map(int ,input().split()) 
if a+b==15:
    print("+")
elif a*b==15:
    print("*")
else :
    print("x")

Solution (Python):
a =raw_input().split()

x=int(a[0])
y=int(a[1])

if x+y == 15:
    print "+"

if x*y == 15:
    print "*"
    
    
if x+y != 15 and x*y != 15:
    print "x"

Solution (Python):
if __name__ == "__main__":
    ab = input().rstrip().split(' ')
    a = int(ab[0])
    b = int(ab[1])

    if a + b == 15:
        print('+')
    elif a * b == 15:
        print('*')
    else:
        print('x')

Solution (Python):
a, b = map(int, input().split())
if a*b == 15:
  print('*')
elif a+b == 15:
  print('+')
else:
  print('x')

Solution (Python):
a, b = list(map(int, input().strip().split(" ")))

if(a + b == 15):
 print("+")
elif(a*b==15):
 print("*")
else:
 print("x")

Solution (Python):
if __name__ == '__main__':
    a, b = list(map(int, input().split()))
    ans = []

    if a + b == 15:
        ans.append('+')
    if a * b == 15:
        ans.append('*')
    if len(ans) == 0:
        ans.append('x')

    print(''.join(ans))

Solution (Python):
a, b = map(int, input().split())
if a + b == 15:
    print("+")
elif a * b == 15:
    print("*")
else:
    print("x")

Solution (Python):
a, b = [int(elem) for elem in input().split(' ')]

if a + b == 15:
    print('+')
elif a * b == 15:
    print('*')
else:
    print('x')

Solution (Python):
a, b = map(int, input().split())
if a+b == 15:
    print('+')
elif a*b == 15:
    print('*')
else:
    print('x')

Solution (Python):
a, b = map(int, input().split())

if a + b == 15:
    print('+')
elif a * b == 15:
    print('*')
else:
    print('x')

Solution (Python):
A, B = map(int, input().split())

if A + B == 15:
    print('+')
elif A * B == 15:
    print('*')
else:
    print('x')

Solution (Python):
a, b = map(int, input().split())
if a + b == 15:
  print("+")
elif a * b == 15:
  print("*")
else:
  print("x")

Solution (Python):
L = input().split(" ")
a = int(L[0])
b = int(L[1])
if a + b == 15:
    print("+")
elif a * b == 15:
    print("*")
else:
    print ("x")

Solution (Python):
a,b = map(int, input().split())

if(a+b==15):
  print("+")
elif(a*b==15):
  print("*")
else:
  print("x")

Solution (Python):
list1=[int(i) for i in input().split()]
a=list1[0]
b=list1[1]
if a+b==15:
    print("+")
elif a*b==15:
    print("*")
else:
    print("x")

Solution (Python):
a,b = map(int,input().split())

if a+b==15:
    print('+')
elif a*b==15:
    print('*')
else:
    print('x')

Solution (Python):
a, b = map(int, input().split())

if a + b == 15:
    print("+")
elif a * b == 15:
    print("*")
else:
    print("x")

Solution (Python):
a, b = map(int, input().split())

if a+b == 15:
  print('+')
elif a*b == 15:
  print('*')
else:
  print('x')

Solution (Python):
a,b=map(int,input().split())

if a+b==15:
    print('+')
elif a*b==15:
    print('*')
else:
    print('x')

Solution (Python):
a, b = map(int, raw_input().split())
if a + b == 15:
    print '+'
elif a * b == 15:
    print '*'
else:
    print 'x'

Solution (Python):
a,b=list(map(int,input().split(' ')));print('+' if a+b==15 else '*' if a*b==15 else 'x')

Solution (Python):
a, b = map(int, input().split())
if a * b == 15:
	print('*')
elif a + b == 15:
	print('+')
else:
	print('x')

Solution (Python):
a, b = [int(x) for x in input().split()]
if a + b == 15:
	print("+")
elif a*b == 15:
	print("*")
else:
	print("x")

Solution (Python):
inputs = list(map(int, input().split(' ')))
if inputs[0]*inputs[1]==15:
    print('*')
elif inputs[0]+inputs[1]==15:
    print('+')
else:
    print('x')

Solution (Python):
def f(a, b):
    if a + b == 15:
        return "+"
    elif a * b == 15:
        return "*"
    else:
        return "x"

a, b = [int(i) for i in input().split()]
print(f(a, b))

Solution (Python):



def solve():
    a, b = map(int, input().split())
    ans = "x"
    if a + b == 15:
        ans = "+"
    if a * b == 15:
        ans = "*"
    print(ans)

if __name__=="__main__":
    solve()

Solution (Python):
a,b=map(int,(input().split()))
if(a+b==15):
    print("+")
elif(a*b==15):
    print("*")
else:
    print("x")

Solution (Python):
a, b = map(int, input().split())
if a + b == 15:
    print('+')
if a*b == 15:
    print('*')
if a + b !=15 and a * b != 15:
    print('x')

Solution (Python):


def main():
    
    a, b = map(int , input().split())
    if a + b == 15:
        print('+')
    elif a * b == 15:
        print('*')
    else:
        print('x')

if __name__ == '__main__':
    main()

Solution (Python):

a,b = map(int, input().split())
if a+b ==15:
    print('+')
elif a*b==15:
    print('*')
else:
    print('x')

Solution (Python):





def main(input_str):
    l = list(map(int, input_str.split(' ')))
    if len(l) != 2:
        print('x')
        return

    
    if l[0] + l[1] == 15:
        print('+')
        return
    elif l[0] * l[1] == 15:
        print('*')
        return
    else:
        print('x')
        return
    

if __name__ == '__main__':
    try:
        main(input().strip())
    except EOFError:
        pass

Solution (Python):
a,b = map(int,input().split())
if a+b==15:
  print('+')
elif a*b==15:
  print('*')
else:
  print('x')

Solution (Python):
a, b = map(int, input().split())
if a + b == 15:
    print('+')
elif a * b == 15:
    print('*')
else:
    print('x')

Solution (Python):
a, b = map(int, input().split())
print('+' if a + b ==15 else '*' if a * b == 15 else 'x')

Solution (Python):
a, b = (int(i) for i in input().split())

if a + b == 15:
    print('+')
elif a * b == 15:
    print('*')
else:
    print('x')

Solution (Python):
a,b = map(int, input().split())

if a + b == 15:
    print("+")
else:
    if a * b == 15:
        print("*")
    else:
        print("x")

Solution (Python):

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

if a + b == 15:
    print("+")
elif a * b == 15:
    print("*")
else:
    print("x")

Solution (Python):
num_str=input().split()
num=list(map(int, num_str))
a=num[0]
b=num[1]
if a+b==15:
  print ("+")
elif a*b==15:
  print ("*")
else:
  print ("x")

Solution (Python):

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

if(a + b == 15):
    print('+')
elif(a * b == 15):
    print('*')
else:
    print('x')

Solution (Python):
a,b = map(int,input().split())

res=0
if b + a==15:
    res="+"
elif b*a == 15:
    res="*"
else:
    res="x"

print(res)

Solution (Python):
n = input().split()

if int(n[0])+int(n[1]) == 15:
    print('+')
elif int(n[0])*int(n[1]) == 15:
    print('*')
else:
    print('x')

Solution (Python):
a,b = map(int,input().split())
if a + b == 15:
    print("+")
elif a * b == 15:
    print("*")
else:
    print("x")

Solution (Python):
a,b = map(int, input().split())

if a + b == 15:
    print('+')
elif a * b == 15:
    print('*')
else:
    print('x')

Solution (Python):

import sys
import math
import numpy as np
import itertools


a, b = (int(i) for i in input().split())  


if a+b == 15 :
    print("+")
elif a*b == 15:
    print("*")
else:
    print("x")

Solution (Python):
a, b = map(int, input().split())
if a+b == 15:
    print('+')
elif a*b == 15:
    print('*')
else:
    print('x')

Solution (Python):
a, b = input().split(' ')
a = int(a)
b = int(b)

if a + b == 15:
    print('+')
elif a * b == 15:
    print('*')
else:
    print('x')

Solution (Python):
l = input().split()
if int(l[0])+int(l[1])==15:
    print('+')
elif int(l[0])*int(l[1]) ==15:
    print('*')
else:
    print('x')

Solution (Python):
a, b  = map(int, input().split())
if a + b == 15: print("+")
elif a * b == 15: print("*")
else: print("x")

Solution (Python):
a, b = map(int, input().split())

if a + b == 15:
    print("+")
elif a * b == 15:
    print("*")
else:
    print("x")

Solution (Python):
ab=input()
ab=ab.rstrip().split(" ")
a=int(ab[0])
b=int(ab[1])

if a+b==15:
    print("+")
elif a*b==15:
    print("*")
else:
    print("x")

Solution (Python):
a,b=map(int,input().split())
if a*b==15:
  print('*')
elif a+b==15:
  print('+')
else:
  print('x')

Solution (Python):
if __name__ == '__main__':
  a,b = map(int, input().split())
  if a+b == 15:
    print("+")
  elif a*b ==15:
    print("*")
  else:
    print("x")

Solution (Python):
a, b = list(map(int, input().split()))
if a + b == 15:
	print("+")
elif a * b == 15:
	print("*")
else:
	print("x")

Solution (Python):
a,b=map(int,raw_input().split())
if a+b==15:  print "+"
elif a*b==15:  print "*"
else:  print "x"

Solution (Python):
a,b = map(int, input().split())
N = a + b
M = a * b
if N == 15 and M == 15:
  print("x")
elif N == 15:
  print("+")
elif M == 15:
  print("*")
else:
  print("x")

Solution (Python):
a, b = map(int, input().split())
if a*b == 15:
    print('*')
elif a+b == 15:
    print('+')
else:
    print('x')

Solution (Python):
import sys

a, b = map(int, next(sys.stdin).split(" "))

if a + b == 15:
    print("+")
elif a * b == 15:
    print("*")
else:
    print("x")

Solution (Python):
a = list(map(int, input().split()))

if sum(a)==15:
    print('+')
elif a[0]*a[1]==15:
    print('*')
else:
    print('x')

Solution (Python):
[a, b]=[int(i) for i in input().split()]

if a+b==15:
    print("+")
elif a*b==15:
    print("*")
else:
    print("x")

Solution (Python):
inp = input().split()
inp = [int(x) for x in inp]

if inp[0] * inp[1] == 15:
    print("*")
elif inp[0] + inp[1] == 15:
    print("+")
else:
    print("x")

Solution (Python):
a, b = list(map(int, input().split()))
if a + b == 15:
    print("+")
elif a * b == 15:
    print("*")
else:
    print("x")

Solution (Python):
a,b=map(int,input().split())
if a+b==15:
    print("+")
elif a*b==15:
    print("*")
else:
    print("x")

Solution (Python):

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

if a + b == 15:
    re = "+"
elif a * b == 15:
    re = "*"
else:
    re = "x"

print(re)

Solution (Python):
a, b = list(map(int, input().split()))

print("+") if a + b == 15 else print("*") if a * b == 15 else print("x")

Solution (Python):
A, B = map(int, raw_input().split())
if A*B == 15:
  print '*'
elif A+B == 15:
  print '+'
else:
  print 'x'

Solution (Python):
a,b = map(int, input().split())
if a+b==15:
    print('+')
elif a*b==15:
    print('*')
else:
    print('x')

Solution (Python):
if __name__ == '__main__':
    N = 15
    line = input()
    nums = line.split(' ')
    a, b = [int(i.strip()) for i in nums]
    assert 1 <= a <= 15
    assert 1 <= b <= 15
    if N - a == b:
        print('+')
    elif N / a == b:
        print('*')
    else:
        print('x')

Solution (Python):
a,b = map(int,input().split())
if a + b == 15:
    print('+')
elif a * b == 15:
    print('*')
else:
    print('x')

Solution (Python):
a,b = list(map(int,input().split()))
if a + b == 15:
    print("+")
elif a * b == 15:
    print("*")
else:
    print("x")

Solution (Python):
A, B = map(int, input().split())
if A+B == 15:
    print('+')
elif A*B == 15:
    print('*')
else:
    print('x')

Solution (Python):
a,b = map(int, input().split())

if a + b == 15:
    print("+")
elif a * b == 15:
    print("*")
else:
    print("x")

Solution (Python):
a,b = map(int,input().split())
if a*b==15:
    print('*')
elif a+b==15:
    print('+')
else:
    print('x')

Solution (Python):
def ilinp(): return list(map(int, input().split()))
def slinp(): return input().split()
def iinp(): return int(input())

a, b = ilinp()
if a + b == 15:
  print("+")
elif a* b == 15:
  print("*")
else:
  print("x")

Solution (Python):
from sys import stdin, stdout
input = lambda: stdin.readline().rstrip()
write = stdout.write

def main():
    A, B = map(int, input().split())

    p = A + B
    m = A * B
    if p == 15:
        write('+\n')
    elif m == 15:
        write('*\n')
    else:
        write('x\n')

main()

Solution (Python):
a,b = map(int, input().split())

if a+b==15:
  print('+')
elif a*b==15:
  print('*')
else:
  print('x')

Solution (Python):
a,b = (int(i) for i in input().split())

if a+b==15:
  print('+')
elif a*b==15:
  print('*')
else:
  print('x')

Solution (Python):
num = list(map(int, input().split()))
if (num[0] + num[1]) == 15:
    print("+")
elif (num[0] * num[1]) == 15:
    print("*")
else:
    print("x")

Solution (Python):

"""
Created on Sat Jul  7 20:14:40 2018
SHPC_A
@author: maezawa
"""

a, b = list(map(int, input().split()))
if a+b == 15:
    print('+')
elif a*b == 15:
    print('*')
else:
    print('x')

Solution (Python):
a,b = map(int, input().split())
if a + b == 15:
    print("+")
elif a * b == 15:
    print("*")
else:
    print("x")

Solution (Python):
a, b = list(map(int, input().split()))
if a + b == 15:
    print('+')
elif a * b == 15:
    print('*')
else:
    print('x')

Solution (Python):
a, b = list(map(int, input().split()))

if a + b == 15:
    print('+')
elif a * b == 15:
    print('*')
else:
    print('x')

Solution (Python):
a, b = [int(i) for i in input().split()]

ans = 'x'

if a + b == 15:
    ans = '+'

elif a * b == 15:
    ans = '*'

print(ans)

Solution (Python):
a, b = [int(i) for i in input().split()]
if a + b == 15:
    print("+")
elif a * b == 15:
    print("*")
else:
    print("x")

Solution (Python):
a, b = map(int, input().split())
if a + b == 15:
    print('+')
elif a * b == 15:
    print('*')
else:
    print('x')

Solution (Python):
a, b = input().split()
a = int(a)
b = int(b)

if a + b == 15:
    print('+')
elif a * b == 15:
    print('*')
else:
    print('x')

Solution (Python):
a, b = [int(i) for i in input().split()]

if a + b == 15:
    print("+")
elif a * b == 15:
    print("*")
else:
    print("x")

Solution (Python):
a,b=map(int, input().split())
if a+b == 15:
    print("+")
elif a*b ==15:
    print("*")
else:
    print("x")

Solution (Python):
s = list(map(int,input().split()))

if s[0]+s[1]==15:
    print("+")
elif s[0]*s[1]==15:
    print("*")
else:
    print("x")

Solution (Python):
a,b = map(int,input().split())
if a + b == 15:
    print("+")
elif a * b == 15:
    print("*")
else:
    print("x")

Solution (Python):
A,B = map( int, input().split() )

if A+B==15:
    print('+')
elif A*B==15:
    print('*')
else:
    print('x')

Solution (Python):
a, b = map(int, input().split())

if a * b == 15:
    print("*")
elif a + b == 15:
    print("+")
else:
    print("x")

Solution (Python):
a,b=list(map(int,input().split()))

if((a+b)==15):
    print("+")
elif((a*b)==15):
    print("*")
else:
    print("x")

Solution (Python):
(a,b) = map(int, input().split())

if a + b == 15:
    print('+')
elif a*b ==15:
    print('*')
else:
    print('x')

Solution (Python):
a,b = map(int,input().split())

if a + b == 15:
    print('+')
elif a * b == 15:
    print('*')
else:
    print('x')

Solution (Python):
a, b = map(int, input().strip().split())

if a + b == 15:
  print('+')
elif a * b == 15:
  print('*')
else:
  print('x')

Solution (Python):
a,b=map(int,input().split())
if a+b==15:
    print('+')
elif a*b==15:
    print('*')
else:
    print('x')

Solution (Python):
a, b = map(int, input().split())

if (a + b == 15):
    print('+')
elif a * b == 15:
    print('*')
else:
    print('x')

Solution (Python):
a,b=map(int,raw_input().split())
if a+b==15:
 print '+'
elif a*b==15:
 print '*'
else:
 print 'x'

Solution (Python):
a,b=[int(i) for i in input().split()]

if a+b==15:
	print("+")
elif a*b==15:
	print("*")
else:
	print("x")

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

if a + b == 15:
    print('+')
elif a * b == 15:
    print('*')
else:
    print('x')

Solution (Python):
a,b = map(int,input().split())
if a+b == 15:
        print("+")
elif a*b == 15:
        print("*")
else:
        print("x")

Solution (Python):


line = input().split(" ")
a = int(line[0])
b = int(line[1])

if a*b==15:
    print("*")
elif a+b==15:
    print("+")
else:
    print("x")

Solution (Python):
a,b = map(int,input().split( ))

if a+b == 15:
    print("+")
elif a*b == 15:
    print("*")
else:
    print("x")

Solution (Python):
def read_line(*types): return [f(a) for a, f in zip(input().split(), types)]

a, b = read_line(int, int)

if a + b == 15:
    print('+')
elif a * b == 15:
    print('*')
else:
    print('x')

Solution (Python):
a, b = map(int, input().split())

aplusb = a + b
ab = a * b

if aplusb == 15:
    print("+")
elif ab == 15:
    print("*")
else:
    print("x")

Solution (Python):
def ketanowa(p):
    ans = 0
    p = str(p)
    for i in p:
        ans += int(i)
    return ans


def main():
    temp = input()
    a,b=temp.split(" ")
    a=int(a)
    b=int(b)
    if a*b==15:
        print("*")
    elif a+b==15:
        print("+")
    
    else:
        print("x")

if __name__ == '__main__':
    main()

Solution (Python):
a, b = map(int, input().split())
if a+b == 15:
    print("+")
elif a*b == 15:
    print("*")
else:
    print("x")

Solution (Python):
a, b = map(int,input().split())
print('+' if a+b==15 else '*' if a*b==15 else 'x')

Solution (Python):
a,b = map(int,input().split())

if(a*b==15):
  print("*")
elif(a+b==15):
  print("+")
else:
  print("x")

Solution (Python):
a,b = map(int,input().split())

if a+b==15:
    print("+")
elif a*b==15:
    print("*")
else:
    print("x")

Solution (Python):

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

if a + b == 15:
    print("+")
elif a * b == 15:
    print("*")
else:
    print("x")

Solution (Python):
N = [int(i) for i in input().split(" ")]
a,b = N[0],N[1]
if a+b == 15:
  print("+")
elif a*b == 15:
  print("*")
else:
  print("x")

Solution (Python):
a,b = input().split()
if int(a) + int(b) == 15:
    print('+')
elif int(a) * int(b) == 15:
    print('*')
else:
    print('x')

Solution (Python):
a, b = map(int, input().split())

if a+b == 15:
    print("+")
elif a*b == 15:
    print("*")
else:
    print("x")

Solution (Python):
a, b = map(int, input().split())

if a*b == 15:
    print("*")
elif a+b == 15:
    print("+")
else:
    print("x")

Solution (Python):
a,b = list(map(int,input().split()))

if a*b == 15:
    print('*')
elif a+b ==15:
    print('+')
else:
    print('x')

Solution (Python):
a, b = map(int, input().split())
if a + b == 15:
	print('+')
elif a * b == 15:
	print('*')
else:
	print('x')

Solution (Python):
a,b=map(int, input().split(" "))
if a+b==15:
    print("+")
elif a*b==15:
    print("*")
else:
    print("x")

Solution (Python):
a,b = map(int,input().split())
if a + b == 15:
    print('+')
elif a * b == 15:
    print('*')
else:
    print('x')

Solution (Python):
a,b = input().split(" ")
a = int(a)
b = int(b)
if a+b ==15:
    print("+")
elif a*b == 15:
    print("*")
else:
    print("x")

Solution (Python):
a, b = list(map(int, input().split(" ")))

if(a+b == 15): print("+")
elif(a*b == 15): print("*")
else: print("x")

Solution (Python):
a,b = map(int,input().split())
if a+b == 15:
    print("+")
elif a*b==15:
    print("*")
else:
    print("x")

Solution (Python):
a,b = map(int,input().split())
if a + b == 15:
    print("+")
elif a*b == 15:
    print("*")
else:
    print("x")

Solution (Python):
a, b = map(int, input().split())

if a + b == 15:
    print("+")
elif a*b == 15:
    print("*")
else:
    print("x")

Solution (Python):
a, b = list(map(int,input("").split(" ")))

if a+b==15:
    print("+")
elif a*b==15:
    print("*")
else:
    print("x")

Solution (Python):
a,b = [int(i) for i in input().split()]

if a+b == 15:
    print("+")
elif a*b == 15:
    print("*")
else:
    print("x")

Solution (Python):
a,b = map(int,input().split())
if a+b == 15:
    print("+")
elif a*b == 15:
    print("*")
else:
    print("x")

Solution (Python):
a, b = map(int, input().split())
if a * b == 15:
    print("*")
elif a + b == 15:
    print("+")
else:
    print("x")

Solution (Python):
a,b = map(int,input().split())

if a + b == 15:
    print('+')
elif a*b == 15:
    print('*')
else:
    print('x')

Solution (Python):
a, b = map(int, input().split())
if a+b == 15:
    print('+')
elif a*b==15:
    print('*')
else:
    print('x')

Solution (Python):
a, b= map(int, input().split())
if a+b == 15:
  print('+')
elif a*b == 15:
  print('*')
else:
  print('x')

Solution (Python):
a, b = map(int, input().split(' '))

if a + b == 15:
    print("+")
    exit()

if a * b == 15:
    print("*")
    exit()

print("x")

Solution (Python):
a,b=[int(x) for x in raw_input().split()]
if a+b==15:
    print "+"
elif a*b==15:
    print "*"
else:
    print "x"

Solution (Python):
a, b = map(int, input().split())

if a + b == 15:
  print('+')
elif a * b == 15:
  print('*')
else:
  print('x')

Solution (Python):
a, b = map(int, input().split())
if a + b == 15:
    print('+')
elif a * b == 15:
    print('*')
else:
    print('x')

Solution (Python):

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

if a + b == 15:
    print('+')
elif a * b == 15:
    print('*')
else:
    print('x')

Solution (Python):
a, b = map(int, input().split())
ans = 'x'
if a + b == 15:
   ans = '+'
elif a * b == 15:
   ans = '*'
print(ans)

Solution (Python):
a, b = map(int, input().split())
if a + b == 15:
    print('+')
elif a * b == 15:
    print('*')
else:
    print('x')

Solution (Python):

import bisect
import heapq
import math
import random
import sys
from collections import Counter, defaultdict
from decimal import ROUND_CEILING, ROUND_HALF_UP, Decimal
from functools import lru_cache, reduce
from itertools import combinations, combinations_with_replacement, product, permutations

sys.setrecursionlimit(10000)


def read_int():
    return int(input())


def read_int_n():
    return list(map(int, input().split()))


def read_float():
    return float(input())


def read_float_n():
    return list(map(float, input().split()))


def read_str():
    return input()


def read_str_n():
    return list(map(str, input().split()))


def error_print(*args):
    print(*args, file=sys.stderr)


def mt(f):
    import time

    def wrap(*args, **kwargs):
        s = time.time()
        ret = f(*args, **kwargs)
        e = time.time()

        error_print(e - s, 'sec')
        return ret

    return wrap


@mt
def slv(a, b):
    if a + b == 15:
        return '+'
    if a * b == 15:
        return '*'
    
    return 'x'


def main():
    a, b = read_int_n()

    
    print(slv(a, b))


if __name__ == '__main__':
    main()

Solution (Python):
def main():
    a,b = input().split()
    a = int(a)
    b = int(b)

    if a+b ==15:
        print("+")
    elif a*b == 15:
        print("*")
    else:
        print("x")

if __name__ == "__main__":
        main()

Solution (Python):
a,b = map(int,input().split())
if a+b==15:
    print("+")
elif a*b==15:
    print("*")
else:
    print('x')

Solution (Python):
A, B = map(int, input().split())

if A*B == 15:
    print('*')
elif A + B ==15:
    print('+')
else:
    print('x')

Solution (Python):
a, b = map(int, input().split())
if a * b == 15:
    print('*')
elif a + b == 15:
    print('+')
else:
    print('x')

Solution (Python):

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

if a*b == 15:
    print("*")

elif a+b == 15:
    print("+")

else:
    print("x")

Solution (Python):
a, b = map(int, input().split())
if a + b == 15:
    print("+")
elif a * b == 15:
    print("*")
else:
    print("x")

Solution (Python):
a, b = map(int, input().split())

if a + b == 15:
    print("+")
elif a * b == 15:
    print("*")
else:
    print("x")

Solution (Python):
a,b=map(int,input().split())
if a+b==15:
  print("+")
elif a*b==15:
  print("*")
else:
  print("x")

Solution (Python):
a, b = map(int, input().split())
if a + b == 15:
    print("+")
elif a * b == 15:
    print("*")
else:
    print("x")

Solution (Python):
a, b = map(int, input().split())
if a + b == 15:
    print("+")
elif a * b == 15:
    print("*")
else:
    print("x")

Solution (Python):
a, b = map(int, input().split())
if a + b == 15:
    print('+')
elif a * b == 15:
    print('*')
else:
    print('x')

Solution (Python):
a, b = map(int, input().split())
if a * b == 15:
    print('*')
elif a + b == 15:
    print('+')
else:
    print('x')

Solution (Python):
a, b = map(int, input().split())
if a + b == 15:
    print('+')
elif a * b == 15:
    print('*')
else:
    print('x')

Solution (Python):


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


if a*b==15:
    print("*")
elif a+b ==15:
    print("+")
else:
    print("x")

Solution (Python):
a,b=map(int,input().split())
if a+b==15:
    print('+')
elif a*b==15:
    print('*')
else:
    print('x')

Solution (Python):



a, b = map(int, input().split())
if a+b == 15:
    print('+')
elif a*b == 15:
    print('*')
else:
    print('x')

Solution (Python):
a,b=map(int,input().split())

if a+b==15:
  print('+')
  exit()
if a*b==15:
  print('*')
  exit()
print('x')

Solution (Python):
n = input().split()

a = int(n[0])
b = int(n[1])

if a + b == 15:
	print("+")
elif a * b == 15:
	print("*")
else:
	print("x")

Solution (Python):
a, b = map(int, input().split())

if a*b == 15:
    print('*')
elif a+b == 15:
    print('+')
else:
    print('x')

Solution (Python):
a, b = map(int, input().split())
if a + b == 15:
    print('+')
elif a * b == 15:
    print('*')
else:
    print('x')

Solution (Python):


x,y = map(int,input().split())	
if x + y == 15:
	print('+')
elif x * y == 15:
	print('*')
else:
	print('x')

Solution (Python):
a,b = map(int,input().split())
if a + b == 15:
    print("+")
elif a * b == 15:
    print("*")
else:
    print("x")

Solution (Python):
a,b = map(int, input().split())
if a+b == 15:
    print('+')
elif a*b == 15:
     print('*')
else:
    print('x')

Solution (Python):

a, b = map(int, input().split())
if a+b==15:
    print('+')
elif a*b==15:
    print('*')
else:
    print('x')

Solution (Python):
a, b = map(int, input().split())

if a + b == 15:
    print('+')
elif a * b == 15:
    print('*')
else:
    print('x')

Solution (Python):
a,b = map(int, input().split())

if a + b == 15:
  print("+")
elif a * b == 15:
  print("*")
else:
  print("x")

Solution (Python):

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

if a + b == 15:
    print('+')
elif a * b == 15:
    print('*')
else:
    print('x')

Solution (Python):
a, b = map(int, input().split(" "))

if a + b == 15:
    print("+")
elif a * b == 15:
    print("*")
else:
    print("x")

Solution (Python):
input_line = input().split()

a = int(input_line[0])
b = int(input_line[1])

if a + b == 15:
    print("+")
elif a * b == 15:
    print("*")
else:
    print("x")

Solution (Python):
a,b = map(int,input().split())
if a+b==15:
    print("+")
elif a*b==15:
    print("*")
else:
    print("x")

Solution (Python):
a, b = map(int, input().split())

if a + b == 15:
    print('+')
elif a * b == 15:
    print('*')
else:
    print('x')

Solution (Python):
a, b = map(int, input().split())
if a+b == 15:
    print("+")
elif a*b == 15:
    print("*")
else:
    print("x")

Solution (Python):
a,b = map(int,input().split())
if a+b == 15:
    print("+")
elif a*b == 15:
    print("*")
else:
    print("x")

Solution (Python):
a, b = (int(x) for x in input().split())
if a + b == 15:
    print("+")
elif a * b == 15:
    print("*")
else:
    print("x")

Solution (Python):
(a,b) = map(int,raw_input().split(' '))
if a+b==15:
    print '+'
elif a*b==15:
    print '*'
else:
    print 'x'

Solution (Python):
a, b = list(map(int, input().split()))

if a + b == 15:
    print("+")
elif a * b == 15:
    print("*")
else:
    print("x")

Solution (Python):
a, b = map(int, input().split())
if a+b == 15:
    print('+')
elif a*b == 15:
    print('*')
else:
    print('x')

Solution (Python):
a, b = list(map(int, input().split()))
if a + b == 15:
    print('+')
elif a * b == 15:
    print('*')
else:
    print('x')

Solution (Python):

a, b = map(int, input().split())
if a+b==15:
    print('+')
elif a*b==15:
    print('*')
else:
    print('x')

Solution (Python):
a, b = map(int, input().split())

if a+b == 15:
    print("+")
elif a*b==15:
    print("*")
else:
    print("x")

Solution (Python):
a,b = map(int,input().split())

if a*b == 15:
    print("*")
elif a+b == 15:
    print("+")
else:
    print("x")

Solution (Python):


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

if a + b == 15:
    print("+")
elif a * b == 15:
    print("*")
else:
    print("x")

Solution (Python):
a, b = map(int, input().split())
if a + b == 15:
  print('+')
elif a * b == 15:
  print('*')
else:
  print('x')