operators_dict={'<': 'less than', '==': 'equal'}
print('Here is the original dict:')
for i in operators_dict:
    print('Operator %s means %s.'%(i, operators_dict[i]))
operators_dict['>']='greater than'
print('\nThe dict was changed to:')
for j in operators_dict:
    print('Operator %s means %s.'%(j, operators_dict[j]))