import sys
input = lambda: sys.stdin.readline().rstrip()
ii = lambda: int(input())
mi = lambda: map(int, input().split())
li = lambda: list(mi())
inf = 2 ** 63 - 1
mod = 998244353
from math import gcd
a, b, c, d = mi()

if gcd(a, b) == 0:
    print(-1)
    exit()
if gcd(c, d) % gcd(a, b):
    print(-1)
    exit()

ans = []

x = a
y = b

for i in range(200):
    if x * y == 0:
        break
    if abs(x) >= abs(y):
        k = x // y
        ans.append((1, -k))
        x -= k * y
    else:
        k = y // x
        ans.append((2, -k))
        y -= k * x

ans2 = []
x2 = c
y2 = d
for i in range(200):
    if x2 * y2 == 0:
        break
    if abs(x2) >= abs(y2):
        k = x2 // y2
        x2 -= k * y2
        ans2.append((1, k))
    else:

        k = y2 // x2
        y2 -= k * x2
        ans2.append((2, k))
#入れ替え
if x == 0 and x2 != 0:
    ans2.append((2, 1))
    y2 += x2
    ans2.append((1, -1))
    x2 -= y2
if y == 0 and y2 != 0:
    ans2.append((1, 1))
    x2 += y2
    ans2.append((2, -1))
    y2 += x2
#符号変え
if x * x2 < 0:
    ans2.append((2, -1))
    y2 -= x2
    ans2.append((1, 1))
    x2 += y2
    ans2.append((1, 1))
    x2 += y2
    ans2.append((2, -1))
    y2 += x2
if y * y2 < 0:
    ans2.append((1, -1))
    x2 -= y2
    ans2.append((2, 1))
    y2 += x2
    ans2.append((2, 1))
    y2 += x2
    ans2.append((1, -1))
    x2 -= y2
ans = ans + ans2[::-1]

x, y = a, b
for t, k in ans:
    if t == 1:
        x += y * k
    else:
        y += x * k
assert x == c and y == d

print(len(ans))
for t, k in ans:
    print(t, k)