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Omni-MATH / When 4444⁴⁴⁴⁴ is written in decimal notation, the sum of its digits is A. Let B be the sum of the digits of A. Find the sum of the digits of B. (A and B are written in decimal nota…

Problem

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problem

When 444444444444^{4444} is written in decimal notation, the sum of its digits is A. A. Let BB be the sum of the digits of A.A. Find the sum of the digits of B. B. (AA and BB are written in decimal notation.)
Plain-text mathematical notation (without MathML)
When 4444⁴⁴⁴⁴ is written in decimal notation, the sum of its digits is A. Let B be the sum of the digits of A. Find the sum of the digits of B. (A and B are written in decimal notation.)
Original LaTeX notation
When $4444^{4444}$ is written in decimal notation, the sum of its digits is $ A.$ Let $B$ be the sum of the digits of $A.$ Find the sum of the digits of $ B.$ ($A$ and $B$ are written in decimal notation.)

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Source and history

task_id
5bea3ad5-a605-59f7-939f-82737a894963
task_key
test--5bea3ad5-a605-59f7-939f-82737a894963
task_revision_id
1
config / split
/ test

Official source

initial import