View Compilation Error

0_0_29390277_7143.cpp: In function 'int main()':
0_0_29390277_7143.cpp:23:17: error: unable to find string literal operator 'operator""s'
     while(scanf("%s"s))
                 ^
0_0_29390277_7143.cpp:32:12: error: expected ';' before 'while'
            while(sum>=10)
            ^