Table:
x	y

17	2

18	11

19	20

Examine the given table and locate the cells that contain the following values:
CELL VALUE 1: '2';
CELL VALUE 2: '17';
CELL VALUE 3: '18';
CELL VALUE 4: 'x';
Return the cell locations using the JSON format {'value': '<cell value>', 'location': (Row_ID, Column_ID)}, where both row and column IDs commence from 1. Some cell values may not be contained in this table. If so, represent their locations as 'DOES NOT EXIST'.

The coordinates of target cells are listed below.
CELL LOCATION 1: {'value': '2', 'location': (2, 2)}
CELL LOCATION 2: {'value': '17', 'location': (2, 1)}
CELL LOCATION 3: {'value': '18', 'location': (3, 1)}
CELL LOCATION 4: {'value': 'x', 'location': (1, 1)}