Decorating Trees

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Harshit has decided to decorate the campus ahead of Pravega. On the Gulmohar marg which has plenty of trees in a line, he has decided to hang colourful bells. The trees on the road are numbered 1,2,3,... . He has decided to hang a bell of colour i on all trees numbered by a multiple of i. There is however a limit on the number of bells that can hang from a tree. Harshit hangs the bells from the fi

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