Examples:
'CAT' --> 'C'
'DOG' --> 'G'
'ROSLY' --> 'R'
'PROBLEM' --> 'M'
'TRUST' --> 'T'
'BASIC' --> 'C'
'GIANT' --> 'I'
'LOGIC' --> 'I'
Solve

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Last Solution submitted on Feb 27, 2026

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KevinPahm Jose 龙 bao

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