Task 9

a = input().split()
a = list(map(int, a))
f = [str(a[0]), str(a[1])+'x', str(a[2])+'y']
x = []
if f[0] != '0':
    x.append(f[0])
if f[1][0] != '0':
    x.append(f[1])
if f[2][0] != '0':
    x.append(f[2])

if len(x) == 3:
    x[-2] = x[-2].replace('-1x', '-x').replace('1x', 'x')
    x[-1] = x[-1].replace('-1y', '-y').replace('1y', 'y')
    if x[1][0] != '-':
        x[1] = ('+' + x[1])
    if x[2][0] != '-':
        x[2] = ('+' + x[2])
    print(''.join(x))

if len(x) == 2:
    x[-2] = x[-2].replace('-1x', '-x').replace('1x', 'x')
    x[-1] = x[-1].replace('-1y', '-y').replace('1y', 'y')
    if x[1][0] != '-':
        x[1] = ('+' + x[1])
    print(''.join(x))
if len(x) == 1:
    if x[0] =='1x' or x[0] == '-1x':
        x[0] = x[0].replace('-1x', '-x').replace('1x', 'x')
    else:
        x[0] = x[0].replace('-1y', '-y').replace('1y', 'y')
    print(''.join(x))
if x == []:
    print(0)