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from random import *
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with open("1.txt","w") as f:
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n,m = int(1e4),int(1e3)
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f.write("{} {}\n".format(n,m))
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f.write(" ".join(str(randint(1,1e9)) for _ in range(n)) + "\n")
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for _ in range(m):
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i,j = randint(1,n),randint(1,n)
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if i > j:
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i,j = j,i
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f.write("{} {}\n".format(i,j)) |
