import Foundation
funcsolution(_data:[[Int]], _col:Int, _row_begin:Int, _row_end:Int) -> Int {
var result =0var data = data
.sorted { $0[0] >$1[0] }
.sorted { $0[col-1] <$1[col-1] }
for i in row_begin...row_end {
result ^= data[i-1].reduce(0, { $0+ ($1% i) })
}
return result
}