The problem describes a radiogram sent using Morse code where the segmentation into letters was lost. We are given a table that maps some Morse code sequences to specific Russian letters:
A: • —
B: — • • •
Л: • — •
O: — — —
П: • • — •
C: — • • •
The radiogram itself is presented as a sequence of dots and dashes: • — — • • — • — — — • • — • • •
We need to segment this sequence using the provided table to form the original message. Let's analyze the sequence from left to right:
The first part, • —, corresponds to the letter 'A'.
The next part, — • • •, corresponds to the letter 'B'.
The following sequence, • — •, corresponds to the letter 'Л'.
Next, — — —, corresponds to the letter 'O'.
Finally, • • — •, corresponds to the letter 'П'.
Putting these decoded letters together, we get the word: АБЛ-ОП.