#!/bin/python

import sys


t,b,f,c = raw_input().strip().split(' ')
t,b,f,c = [int(t),int(b),int(f),int(c)]
# your code goes here
mx = t*(t-1)
if mx < t + b + f + c:
    print "-1"
else:
    print "4"
    print "3 2 4 3"
    print "1 3"
    print "1 1"
    print "1 2"