Blockly:TEXT CHARAT LAST/qqq
block text - Indicates that the last letter (or number, punctuation mark, etc.) of the following piece of text should be retrieved. See https://github.com/google/blockly/wiki/Text#extracting-a-single-character. 
block text - Indicates that the last letter (or number, punctuation mark, etc.) of the following piece of text should be retrieved. See https://github.com/google/blockly/wiki/Text#extracting-a-single-character.