from math import gcd

a, b, c, d = map(int, input().split())
if gcd(a, b) != gcd(c, d):
    print(-1)
    exit()


def solve(x, y):
    ans = []
    while x != 0 and y != 0:
        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

    if y == 0:
        ans.append((2, 1))
        ans.append((1, -1))
    if y < 0:
        ans.append((1, 1))
        ans.append((2, -2))
        ans.append((1, 1))
        
    return ans

A = solve(a, b)
B = solve(c, d)

ans = A[:]
for t, b_ in B[::-1]:
    ans.append((t, -b_))

print(len(ans))
for row in ans:
    print(*row)

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

assert (x, y) == (c, d)