this project is to compare between two arrays and delete the same value from the first array

this is the code

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#include <stdio.h>

int main (void)
{
    int main[]={3,4,3,1,1,8,6,10};
    int second[]={1,2,7,8};
    int lenm=sizeof(main)/sizeof(int);//which mean the length of (main)array
    int lens= sizeof(second)/sizeof(int);//which mean the length of (second)array
    int help=0;


    help=lenm;
    for(int i=0;i<lenm;i++)
    {

        for(int q=0;q<lens;q++)
        {
            if(main[i]==second[q])
            {
                for(int k=i;k<lenm;k++)
                {
                    main[i]=main[i+1];  
                }
                lenm--;

            }

        }
    }
    printf("array after delete is : ");
    for (int i=0;i<lenm;i++)
    {
        printf("%i,",main[i]);
    }
    printf("\n");
    return 0;
}

________________________________________________________________________________there is no compiler errors

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the expected result is (array after delete is :: 3,4,3,6,10,)

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and the result now is (array after delete is :: 3,4,3,1,8,)

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I asked this question befor this and the users said that I must make some meaningful names so I edit the code and asked again