15291c20ae883c7e50b34875f67e18cde89448370e4600739625c037c6fd?x amz algorithm=aws4 hmac sha256&x amz credential=akiaii6jt62oqlhbx2eq%2f20171123%2fap northeast 1%2fs3%2faws4 request&x amz date=20171123t235333z&x amz expires=900&x amz signedheaders=host&x amz signature=2272fb752ea1ab99c207bebd6f0806d21a9d321a41d15a7826bb0d73e648b215

カヌースラロームジュニア世界選手権大会参戦!In ポーランド