View Compilation Error

0_0_21859050_19620.cpp: In function 'int main(int, char**)':
0_0_21859050_19620.cpp:23:18: error: two or more data types in declaration of 'pos'
         auto int pos=p.find(s1);
                  ^
0_0_21859050_19620.cpp:24:15: error: 'pos' was not declared in this scope
         while(pos!=string::npos)
               ^