[[Problem 1331]] -a(X,Y):XXXXYa(rYY,Xa(XlX,YY)) sra(srs,s) -- _misaki &new{2018-12-21 (金) 01:03:03}; -[26B] a(X,Y):XXXXYa(rYY,Xa(XlX,YY)) sra(srs,s) -- _misaki &new{2018-12-21 (金) 01:03:03};