15291c20ae883c7e50b34875f67e18cde89448370e4600739625c037c6fd?x amz algorithm=aws4 hmac sha256&x amz credential=akiaii6jt62oqlhbx2eq%2f20180918%2fap northeast 1%2fs3%2faws4 request&x amz date=20180918t174510z&x amz expires=900&x amz signedheaders=host&x amz signature=c2e24eef12950e52bc1bb94bebd24e8407b78b5a9995d62739af02565fd9e723

2017世界選手権優勝へ、レベル底上げ合宿!