{split ( $0, arr, "-" )

if ((arr[1] < 1) || (arr[1] > 31) || (arr[2] < 1) || (arr[2] > 12))
{
    print "invalid date"
    exit 0
}
else
{
    if (arr[2] == 1)
        print "January"
    else if (arr[2] == 2)
        print "February"
    else if (arr[2] == 3)
        print "March"
    else if (arr[2] == 4)
        print "April"
    else if (arr[2] == 5)
        print "May"
    else if (arr[2] == 6)
        print "June"
    else if (arr[2] == 7)
        print "July"
    else if (arr[2] == 8)
        print "August"
    else if (arr[2] == 9)
        print "September"
    else if (arr[2] == 10)
        print "October"
    else if (arr[2] == 11)
        print "November"
    else if (arr[2] == 12)
        print "December"
    print arr[1]
    print arr[3]
}
}



BEGIN {
    print "Removing Duplicated lines"
}
{
    line [++no] = $0
}
END {
    for (i = 1 ; i <= no; i++)
    {
        flag = 1
        for (j = 1; j < i; j++)
            if (line[i] == line[j])
                flag = 0
        if(flag == 1)
            print line[i] >>"out.txt"
    }
}