>> whatHappensNext

0694235 901124 serener

8021734 285571 unkinks

0521437 208841 enures

0348217 405528 eskers

3970254 731120 erasure

3970164 732210 erasure

0795236 901125 serenes

0615932 107795 senses

0619753 102279 issues

0975236 701125 serenes

7930218 375520 erasure

7930128 376610 erasure

0812954 106692 irises

0182954 806692 irises

6940137 465510 erasure

0432865 307782 skunks

0256943 507796 sansei

0625943 208895 senses

>> 

Sorted on the words:

0521437 208841 enures

7930218 375520 erasure

6940137 465510 erasure

7930128 376610 erasure

3970254 731120 erasure

3970164 732210 erasure

0348217 405528 eskers

0812954 106692 irises

0182954 806692 irises

0619753 102279 issues

0256943 507796 sansei

0615932 107795 senses

0625943 208895 senses

0694235 901124 serener

0975236 701125 serenes

0795236 901125 serenes

0432865 307782 skunks

8021734 285571 unkinks

>> 

Erasure has more than one solution (the numbers on the left for UKRAINE and RUSSIA).

Most others have a leading zero for Ukraine.

Only "unkinks" is left.

Perhaps there's a proper name that's available and makes more sense than "unkinks", but according to this, UNKINKS is the only rhs that will have a unique answer without having a leading zero in UKRAINE. It's too bad that "serener" leads to a leading zero.

 

 

 digs=0:9;

 codes=combinator(10,8,'p');

 plain={'u','k','r','a','i','n','e','s'};

 codes=digs(codes);

 for i=1:length(codes)

    code=char(string(codes(i,:)));

    code=reshape(code,1,8);

    for j=1:8

      cypher{j}=code(j);

    end

    ukraine=code(1:7);

    ukraine=strcat(ukraine(:,:));

    russia=code([3 1 8 8 5 4]);

    result=char(string(str2double(ukraine)+str2double(russia)));

    result=replace(result,cypher,plain);

    if length(strfind(result,digitsPattern))==0

       if isword(result)

         disp([ukraine, ' ', russia, ' ', result])

       end

    end

end