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  1. text = 'aaa;bbbbb;cc;ddd;e;fffffff;gggggg;hhhhhhh;tttt;ertert;erterterggg;ergergergerg;ver'
  2. result = ''.join([c+'|' if i % 5 == 0 else c+';' for i,c in enumerate(text.split(';'), 1)])
  3. print(result)
Success #stdin #stdout 0.02s 28384KB
stdin
Standard input is empty
stdout
aaa;bbbbb;cc;ddd;e|fffffff;gggggg;hhhhhhh;tttt;ertert|erterterggg;ergergergerg;ver;