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2014 KIMC keystage2-EMIC team Question 5

xIMC · 2014 KIMC keystage2-EMIC team

Question 5

The positive integers $1,2,\ldots,2014$ strung together form a very long multi-digit number $12345678910111213\ldots201220132014$. A seven-digit multiple of 11 is obtained by erasing all the digits before it and all the digits after it. Determine the smallest possible value of this seven-digit number, which may not start with the digit 0.