View Compilation Error

1_867_581_15890.cpp: In function 'int main()':
1_867_581_15890.cpp:11:23: error: expected ')' before '{' token
    if(a==1||a==2||a==3{
                       ^
1_867_581_15890.cpp:16:3: error: expected primary-expression before '}' token
   }
   ^