import sys
input = sys.stdin.readline

a,b,c,d=map(int,input().split())

if a==c and b==d:
    print(0)
    exit()

if a==b==0 or c==d==0:
    print(-1)
    exit()

X=[(a,b)]

while a!=0 and b!=0:
    if abs(a)>abs(b):
        a=a%b
        X.append((a,b))
    else:
        b=b%a
        X.append((a,b))
        

Y=[(c,d)]
while c!=0 and d!=0:
    if abs(c)>abs(d):
        c=c%d
        Y.append((c,d))
    else:
        d=d%c
        Y.append((c,d))

k=-1
for a in X[-1]:
    if a!=0:
        k=a

l=-1
for a in Y[-1]:
    if a!=0:
        l=a

if abs(k)!=abs(l):
    print(-1)
    exit()


if X[-1]==Y[-1]:
    X=X+Y[::-1][1:]
else:
    X[-1]=(k,k)
    X.append((k,l))
    X.append((l,l))
    X=X+Y[::-1][1:]
    

ANS=[]

for i in range(len(X)-1):
    a,b=X[i]
    c,d=X[i+1]

    if a==c:
        x=(d-b)//a

        ANS.append((2,x))

    else:
        x=(c-a)//b

        ANS.append((1,x))

print(len(ANS))
for x,y in ANS:
    print(x,y)