/in/foo.cc: In function 'int main()':
/in/foo.cc:6:1: error: 'stritng' was not declared in this scope
 stritng s1,s2;
 ^~~~~~~
/in/foo.cc:7:6: error: 's1' was not declared in this scope
 cin>>s1;
      ^~
/in/foo.cc:8:6: error: 's2' was not declared in this scope
 cin>>s2;
      ^~