f = open('INPUT.TXT')
a, b, c = map(int, f.readline().split())
f.close()

result = ""

if a == 0 and b == 0 and c == 0:
    result = "0"
else:
    if a != 0:
        result += str(a)
    
    if b != 0:
        if b > 0 and result:
            result += "+"
        if b == 1:
            result += "x"
        elif b == -1:
            result += "-x"
        else:
            result += str(b) + "x"
    
    if c != 0:
        if c > 0 and result:
            result += "+"
        if c == 1:
            result += "y"
        elif c == -1:
            result += "-y"
        else:
            result += str(c) + "y"

f = open('OUTPUT.TXT', 'w')
f.write(result)
f.close()