Each row includes candidate_id and skill.

Write a query to find the candidates best suited for a Data Scientist position. The candidate must be proficient in Python , Tableau , and PostgreSQL.

Return the result table ordered bycandidate_id inascending order.

The result format is in the following example.

Examples

Example 1:

Input: 
Candidates table:
+---------------+--------------+
| candidate_id  | skill        | 
+---------------+--------------+
| 123           | Python       |
| 234           | R            | 
| 123           | Tableau      | 
| 123           | PostgreSQL   | 
| 234           |

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