# [Morsecco][1]: <s> 206 </s> 203 bytes writing an interpreter for a two-symbol language using a three-symbol language seems to be a fair challenge: ``` . -- . -- . --.- . . .-- . . . - .-. -- - -.-. - -.- .- . .-...-- .- --.. . .--... .- --.. --. - .- --. - . . - .- . .------- .- - - --.. .-. . ------- .- - .-. - . --. - . -.- - . - .-- . . - . --. ``` The first line creates an error handler (code written to special address `.`) to quit the program without error if the input is used up. Everything else is pretty straight forward. Without having MOD or compare I always add -127, adding 127 again if the result was not zero. Maybe I can think of a shorter solution on another day. [1]: https://codegolf.meta.stackexchange.com/a/26119/72726