Blockly:TEXT GET SUBSTRING END LAST/qqq
block text - Indicates that a region ending with the last letter of the preceding piece of text should be extracted. See https://github.com/google/blockly/wiki/Text#extracting-a-region-of-text. 
block text - Indicates that a region ending with the last letter of the preceding piece of text should be extracted. See https://github.com/google/blockly/wiki/Text#extracting-a-region-of-text.