The code is giving me an error.
 System.ListException: List index out of bounds: 6  Class.tt.<init>: line 14, column 1
Please help me on this.

APEX CONTROLLER
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public class tt
{
    public List<Account> accLst {get; set;}
    public List<Contact> conLst {get; set;}
    public List<MyWrapper> wrapper {get; set;}

    public tt()
    {
        accLst = [select id,name from account   ] ;
        conLst = [select id,name from contact   ] ;
        wrapper = new List<MyWrapper>() ;
        for(Integer i=0 ;i<20;i++)
            wrapper.add(new MyWrapper(accLst[i] , conLst[i])) ;
    }
    
    public class MyWrapper
    {
        public Account accRec {get; set;}
        public Contact conRec {get; set;}
        
        public MyWrapper(Account acc , Contact con)
        {
            accRec = acc ;
            conRec = con ;
        }
    }
}

VisualForce Page

<apex:page controller="tt">
    <apex:pageBlock >
        <apex:pageBlockSection >
            <apex:pageBlockTable value="{!wrapper}" var="wrap">
                <apex:column headerValue="Account Name" value="{!wrap.accRec.Name}"/>
                <!-- you can add related fields here   -->
                <apex:column headerValue="Contact Name" value="{!wrap.conRec.Name}"/>
            </apex:pageBlockTable>
        </apex:pageBlockSection>
    </apex:pageBlock>
</apex:page>