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The Week in Pictures: Oct. 16 -23

Foamy freshmen at St. Andrews, widows light up Diwali, umbrellas vs. batons in Hong Kong, football fight on the field, counting sheep & more.
Image: First year students from St. Andrew's University cover themselves in foam
First year students from St. Andrew's University cover themselves in foam on Oct. 20 in St. Andrews, Scotland. The annual foam fight is the culmination of the centuries-old "Raisin Weekend" at the university when new students would give senior students a pound of raisins.Jeff J Mitchell / Getty Images