import sys
input = lambda :sys.stdin.readline()[:-1]
ni = lambda :int(input())
na = lambda :list(map(int,input().split()))
yes = lambda :print("yes");Yes = lambda :print("Yes");YES = lambda : print("YES")
no = lambda :print("no");No = lambda :print("No");NO = lambda : print("NO")
#######################################################################

A,B,C,D = na()
a,b,c,d = A,B,C,D
if a == 0 and b == 0:
    if c == 0 and d == 0:
        print(0)
    else:
        print(-1)
    exit()
elif c == 0 and d == 0:
    print(-1)
    exit()
l = []
r = []
if a != 0:
    if a > 0:
        k = (-b)//a + 1
        l.append((2, k))
    else:
        k = (b-a-1)//(-a)-1
        l.append((2, k))
    b += a * k
if b != 0:
    if b > 0:
        k = (-a)//b + 1
        l.append((1, k))
    else:
        k = (a-b-1)//(-b)-1
        l.append((1, k))
    a += b * k
if a != 0:
    if a > 0:
        k = (-b)//a + 1
        l.append((2, k))
    else:
        k = (b-a-1)//(-a)-1
        l.append((2, k))
    b += a * k

if c != 0:
    if c > 0:
        k = (-d)//c + 1
        r.append((2, -k))
    else:
        k = (d-c-1)//(-c)-1
        r.append((2, -k))
    d += c * k
if d != 0:
    if d > 0:
        k = (-c)//d + 1
        r.append((1, -k))
    else:
        k = (c-d-1)//(-d)-1
        r.append((1, -k))
    c += d * k
if c != 0:
    if c > 0:
        k = (-d)//c + 1
        r.append((2, -k))
    else:
        k = (d-c-1)//(-c)-1
        r.append((2, -k))
    d += c * k

def f(x,y):
    if x >= y:
        return x % y, y, x//y, 1
    return x, y % x, y//x, 2


while a and b:
    a, b, x, y = f(a, b)
    #print(a, b)
    l.append((y, -x))

if a == 0:
    l.append((1, 1))
    l.append((2, -1))
    a = b
    b = 0

while c and d:
    c, d, x, y = f(c, d)
    r.append((y, x))
    #print(c, d)
if c == 0:
    r.append((1, -1))
    r.append((2, 1))
    c = d
    d = 0

if a != c:
    print(-1)
    exit()
#print()
ans = l + r[::-1]
print(len(ans))
for i in ans:
    print(*i)
#print()
x,y = A,B
for p, q in ans:
    #print(x,y)
    if p == 1:
        x += y * q
    else:
        y += x * q
#print(x, y)
""" if (x,y) != (C,D):
    print("!")
    exit() """