Issue while splitting a row of record

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# 8  
Old 09-23-2009
$ cat file
Account_Id Date Id Balance
44 9 1000.00 30 15-10-2173 10 1000.00 42 15-10-2173 10 1200.00 53 01-01-2008 10 1200.00

The idea is to split fields in group of 4. If the second field of that group is not a date, offset the field order by one.

        # if every second field is a not a date
        if(i+n==(2+(j*4)) && $i !~ /^[0-9][0-9]-/){
            dummy="            "    # set space for missing date
            n+=1                    # offset fields order by one
        sep=" "
        if(!((i+n)%4)){             # line break every 4 field
        printf dummy $i sep

Yield the following result:
$ awk -f aa.awk file
44             9 1000.00
30 15-10-2173 10 1000.00
42 15-10-2173 10 1200.00
53 01-01-2008 10 1200.00

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