View Compilation Error

0_0_21535245_2910.cpp: In function 'int main()':
0_0_21535245_2910.cpp:6:2: error: expected initializer before 'long'
  long long int s3;
  ^
0_0_21535245_2910.cpp:7:17: error: 's2' was not declared in this scope
  while(cin>>s1>>s2>>s3&&s1!=0&&s2!=0&&s3!=0){
                 ^
0_0_21535245_2910.cpp:7:21: error: 's3' was not declared in this scope
  while(cin>>s1>>s2>>s3&&s1!=0&&s2!=0&&s3!=0){
                     ^