PostgreSQL encoding problem with greek characters

I have made a database with utf8 encoding and some greek characters are not recognized in the values that I insert. I use this to create the database:

CREATE DATABASE greek WITH ENCODING 'UTF-8' LC_COLLATE='el_GR.utf8' LC_CTYPE='el_GR.utf8' TEMPLATE=template0;

I have this table:

CREATE TABLE IF NOT EXISTS products(    id SERIAL PRIMARY KEY,    name VARCHAR(50),    category VARCHAR(50),    subcategory  VARCHAR(50),    photo VARCHAR(100),    UNIQUE (name)); 

And then with this insert I try to put in the datbase these values here is how it looks in the windows insert command command prompt:

INSERT INTO products VALUES    (0,'ΚύκνοςΤομάτεςΑποφλΟλoκλ 400γρ','ee0022e7b1b34eb2b834ea334cda52e7','a02951b1c083449b9e7fab2fabd67198'),    (1,'Elite ΦρυγανιέςΟλικήςΆλεσης 180γρ','ee0022e7b1b34eb2b834ea334cda52e7','a483dd538ecd4ce0bdbba36e99ab5eb1'),    (2,'Trata ΣαρδέλαΛαδιού 100γρ','ee0022e7b1b34eb2b834ea334cda52e7','df10062ca2a04789bd43d18217008b5f'),    (3,'ΜεβγάλΤυρίΗμισκλΜακεδ 420γρ','ee0022e7b1b34eb2b834ea334cda52e7','4c73d0eccd1e4dde8bb882e436a64ebb');

when I do the select query to see the values

select * from products;

What I get is these unrecognized characters:screenshot

What should I try so that all the characters are recognized inside the database?

I tried changing the encoding of the database to WIN1252 but it did not work.