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

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