
list_1 = ['pen', 'staplers', 'flame-throwers', "binders", 'staplers', 
          'flame-throwers', "binders",  'staplers', 'flame-throwers', "binders",  
          'staplers', 'flame-throwers', "binders",  'staplers', 'flame-throwers', "binders",  
          'staplers', 'flame-throwers', "binders",  'staplers', 'flame-throwers', "binders",  
          'staplers', 'flame-throwers', "binders"]


for i in range(len(list_1)):
    print(str(i) + ' ' + list_1[i])