Blockly:TEXT CHARAT FIRST/qqq
block text - Indicates that the first letter 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 first letter of the following piece of text should be retrieved. See https://github.com/google/blockly/wiki/Text#extracting-a-single-character.