This block can perform any operation from the operators column in Scratch, except for the bottom one. It has three string inputs: the first to tell it what operation to do (available ones: +, -, *, /, pick random, <, >, =, AND, OR, NOT, NAND, NOR, XOR, XNOR, join, letter of, length of, mod, round), the next for the first input (if the operation uses only one input, this is the one used), and the last for the second input. All operations are saved to the variable 'operation output'.