15291c20ae883c7e50b34875f67e18cde89448370e4600739625c037c6fd?x amz algorithm=aws4 hmac sha256&x amz credential=akiaii6jt62oqlhbx2eq%2f20190418%2fap northeast 1%2fs3%2faws4 request&x amz date=20190418t184158z&x amz expires=900&x amz signedheaders=host&x amz signature=4b3400193b3d698a8de4009f18de1bb4a9d49dadfea6f5bf78e2169b926a1230

2017世界選手権優勝へ、レベル底上げ合宿!