f=50
v=[f]
w=[1]
for i in range(2,1001):
    tmp=i
    cnt=0
    for j in range(1,i):
        if tmp>=j:
            tmp-=w[j-1]
            cnt+=v[j-1]
    v.append(cnt+1)
    w.append(i)
print(len(v),1000)
for i in range(len(v)):
    print(v[i],w[i])