with javascript_semantics
include builtins\mpfr.e
sequence tests = {{5,3},{100,50},{60,30},{1200,120}}
mpz r = mpz_init()
for i=1 to length(tests) do
    integer {n,k} = tests[i]
    mpz_bin_uiui(r,n,k)
    ?mpz_get_str(r)
end for