public static void main ( String [ ] args ) {
  Scanner sc = new Scanner ( System . in ) ;
  int n = sc . nextInt ( ) ;
  int m = sc . nextInt ( ) ;
  int [ ] a = new int [ n + 1 ] ;
  for ( int i = 1 ;
  i <= n ;
  i ++ ) {
    a [ i ] = sc . nextInt ( ) ;
  }
  long [ ] sum = new long [ n + 1 ] ;
  for ( int i = 1 ;
  i <= n ;
  i ++ ) {
    sum [ i ] = a [ i ] + sum [ i - 1 ] ;
  }
  HashMap < Long , Integer > map = new HashMap < Long , Integer > ( ) ;
  for ( int i = 1 ;
  i <= n ;
  i ++ ) {
    map . put ( sum [ i ] % m , 0 ) ;
  }
  for ( int i = 1 ;
  i <= n ;
  i ++ ) {
    int x = map . get ( sum [ i ] % m ) ;
    map . put ( sum [ i ] % m , x + 1 ) ;
  }
  long ans = 0 ;
  if ( map . containsKey ( 0l ) ) {
    ans = map . get ( 0l ) ;
  }
  for ( long i : map . keySet ( ) ) {
    if ( map . get ( i ) >= 2 ) {
      for ( int j = map . get ( i ) ;
      j > 1 ;
      j -- ) {
        ans += j - 1 ;
      }
    }
  }
  System . out . println ( ans ) ;
}

public static void main ( String [ ] args ) { Scanner sc = new Scanner ( System . in ) ; int n = sc . nextInt ( ) ; int m = sc . nextInt ( ) ; int [ ] a = new int [ n + 1 ] ; for ( int i = 1 ; i <= n ; i ++ ) { a [ i ] = sc . nextInt ( ) ; } long [ ] sum = new long [ n + 1 ] ; for ( int i = 1 ; i <= n ; i ++ ) { sum [ i ] = a [ i ] + sum [ i - 1 ] ; } HashMap < Long , Integer > map = new HashMap < Long , Integer > ( ) ; for ( int i = 1 ; i <= n ; i ++ ) { map . put ( sum [ i ] % m , 0 ) ; } for ( int i = 1 ; i <= n ; i ++ ) { int x = map . get ( sum [ i ] % m ) ; map . put ( sum [ i ] % m , x + 1 ) ; } long ans = 0 ; if ( map . containsKey ( 0l ) ) { ans = map . get ( 0l ) ; } for ( long i : map . keySet ( ) ) { if ( map . get ( i ) >= 2 ) { for ( int j = map . get ( i ) ; j > 1 ; j -- ) { ans += j - 1 ; } } } System . out . println ( ans ) ; }
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