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  1. N=int(input())
  2. silnia=1
  3. for i in range(1,N+1):
  4. if N==0: print(1)
  5. else: silnia=silnia*i
  6. print(silnia)
  7.  
Success #stdin #stdout 0.11s 14076KB
stdin
Standard input is empty
stdout
1