Reading In A Variable Amount Of Interger Input

How can I read in a different amount of integers based on a users input.

Enter Amount of Integers : 3

I Then allocated memory with malloc to hold 3 integers.  Now I want to enter in three integers.  How can I do this with scanf or is therea better way.

I tried using a for loop with the scanf, but it did not work as expected.
      printf("\nPlease Provide %d chainwheel sizes in ascending order: ", iNumberChainWheels );

for ( iLoopVariable = 0 ; iLoopVariable <  iNumberChainWheels; iLoopVariable++ )
{
scanf("%d",&pChainWheelSizes[iLoopVariable]) ;
}

The above code did call scanf three times, but what if the user entered all tree integers on the same line...  Any thoughts.