public static void main ( String ... args ) {
  int N = IN . nextInt ( ) ;
  int M = IN . nextInt ( ) ;
  int [ ] A = new int [ N ] ;
  for ( int i = 0 ;
  i < N ;
  i ++ ) {
    A [ i ] = IN . nextInt ( ) ;
  }
  HashMap < Integer , Integer > B = new HashMap < > ( ) ;
  B . put ( 0 , 1 ) ;
  long ans = 0 ;
  int tot = 0 ;
  for ( int a : A ) {
    tot = ( tot + a ) % M ;
    int tmp = B . getOrDefault ( tot , 0 ) ;
    ans += ( long ) tmp ;
    B . put ( tot , tmp + 1 ) ;
  }
  puts ( ans ) ;
  flush ( ) ;
}

public static void main ( String ... args ) { int N = IN . nextInt ( ) ; int M = IN . nextInt ( ) ; int [ ] A = new int [ N ] ; for ( int i = 0 ; i < N ; i ++ ) { A [ i ] = IN . nextInt ( ) ; } HashMap < Integer , Integer > B = new HashMap < > ( ) ; B . put ( 0 , 1 ) ; long ans = 0 ; int tot = 0 ; for ( int a : A ) { tot = ( tot + a ) % M ; int tmp = B . getOrDefault ( tot , 0 ) ; ans += ( long ) tmp ; B . put ( tot , tmp + 1 ) ; } puts ( ans ) ; flush ( ) ; }
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