static int [ ] Findpermutation ( int n ) {
  int [ ] a = new int [ n + 1 ] ;
  a [ 1 ] = n ;
  for ( int i = 2 ;
  i <= n ;
  i ++ ) a [ i ] = i - 1 ;
  return a ;
}

static int [ ] Findpermutation ( int n ) { int [ ] a = new int [ n + 1 ] ; a [ 1 ] = n ; for ( int i = 2 ; i <= n ; i ++ ) a [ i ] = i - 1 ; return a ; }
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