#include <seqan3/alphabet/nucleotide/dna5.hpp>
#include <seqan3/core/debug_stream.hpp>

int main()
{
    using namespace seqan3::literals;

    seqan3::dna5 letter{'A'_dna5};

    letter.assign_char('C');
    seqan3::debug_stream << letter << '\n'; // prints "C"

    letter.assign_char('F'); // Unknown characters are implicitly converted to N.
    seqan3::debug_stream << letter << '\n'; // prints "N"
}
