View Compilation Error

0_0_21745610_24976.cpp: In function 'int main(int, const char**)':
0_0_21745610_24976.cpp:61:9: error: 'll' was not declared in this scope
         ll max1=sum1*sum2;
         ^
0_0_21745610_24976.cpp:94:13: error: 'max1' was not declared in this scope
             max1=max(max1,sum1*sum2);
             ^
0_0_21745610_24976.cpp:96:25: error: 'max1' was not declared in this scope
         printf("%lld\n",max1);
                         ^