39999+3999+399+39.
39999+3999+399+39,
=39999+3999+399+(1+1+1+36),
=(39999+1)+(3999+1)+(399+1)+36,
=40000+4000+400+36,
=44436.
39999+3999+399+39.
39999+3999+399+39,
=39999+3999+399+(1+1+1+36),
=(39999+1)+(3999+1)+(399+1)+36,
=40000+4000+400+36,
=44436.