View Compilation Error

0_0_30183783_21779.cpp: In function 'int main()':
0_0_30183783_21779.cpp:11:3: error: expected ';' before 'int'
   int l1 = strlen(str);
   ^
0_0_30183783_21779.cpp:13:17: error: 'l1' was not declared in this scope
   for(i = 0;i < l1;){
                 ^