A helicopter drops two trains, each on a parachute, onto a straight
infinite railway line. There is an undefined distance between the two
trains. Each faces the same direction, and upon landing, the parachute
attached to each train falls to the ground next to the train and detaches.
Each train has a microchip that controls its motion. The chips are
identical. There is no way for the trains to know where they are. You need
to write the code in the chip to make the trains bump into each other. Each
line of code takes a single clock cycle to execute.*
You can use the following commands (and only these);*
MF - moves the train forward
MB - moves the train backward
IF (P) - conditional that's satisfied if the train is next to a parachute.
There is no "then" to this IF statement.
GOTO

-- 
Lalit Kishore Sharma,

IIIT Allahabad (Amethi Capmus),
6th Sem.

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