View Compilation Error

0_0_25317721_10525.cpp: In function 'int main()':
0_0_25317721_10525.cpp:11:12: error: expected primary-expression before 'int'
   for (i=0,int sz=strlen(a1);i<sz;i++)
            ^
0_0_25317721_10525.cpp:11:32: error: 'sz' was not declared in this scope
   for (i=0,int sz=strlen(a1);i<sz;i++)
                                ^
0_0_25317721_10525.cpp:13:12: error: expected primary-expression before 'int'
   for (i=1,int sz=strlen(a1);i<=sz;i++)
            ^
0_0_25317721_10525.cpp:13:33: error: 'sz' was not declared in this scope
   for (i=1,int sz=strlen(a1);i<=sz;i++)
                                 ^