N=1000
W=1000
fi=10**6
print(N,W)
dp=[0]+[fi]*W
ans=[(fi,1)]
for w in range(2,W+1):
    ans.append((dp[w]+1,w))
    v=dp[w]+1
    ndp=[0]*(W+1)
    for i in range(W+1):
        ndp[i]=max(ndp[i],dp[i])
        if i+w<=W:
            ndp[i+w]=max(ndp[i+w],dp[i]+v)
    dp=ndp
for v,w in ans:
    print(v,w)