Monte Carlo Simulation Consecutive Head Coin Toss

1.monte carlo simulation for a consecutive head toss. 2.ssue I am facing is that I get an error like this 3. {Error: unexpected input in "ngtm <−" 4.how do I fix this? and is there any syntax issues in this code?

nreps = 1000
m = 100
k = 10
ngtm <− function( 10, 100, 1000 ) {
   count <− 0
   for ( rep in 1 : nreps ) {
      blank ( a )
      for ( i i n 1 : blank ( b ) ) {
        toss <− sample ( 0 : 1 , 1 )
        if ( toss ) {
          consech <− consech + 1
          if ( consech == blank ( c ) ) break
      } else consech <− 0
    }
    if ( consech < k ) count <− count + 1
  return ( count / blank ( d ) )
}