import random
import os
def sys(s):return os.system(s)
def rand(l,r):return int(random.uniform(l,r+1))
cnt=0
while True:
[tab]fout=open("hide.in","w")
[tab]n,m=10,10
[tab]orz=[i+1 for i in range(0,n)]
[tab]random.shuffle(orz)
[tab]print(n,file=fout)
[tab]for i in range(2,n+1):print(rand(1,i-1),i,file=fout)
[tab]print(m*2,file=fout)
[tab]for tjj in range(0,m):
[tab][tab]print('C',orz[tjj],file=fout)
[tab][tab]print('G',file=fout)
[tab]fout.close()
[tab]sys("./hide && ./std")
[tab]cnt+=1;print(cnt,end=' ')
[tab]if sys("diff hide.out hide.ans"):break
[tab]print("AC")
print("WA")