View Compilation Error

0_0_37762735_16062.cpp: In function 'int main()':
0_0_37762735_16062.cpp:17:27: error: 's1' was not declared in this scope
     while (~scanf("%s%s", s1, s3)) {
                           ^
0_0_37762735_16062.cpp:18:10: error: 'suml' was not declared in this scope
          suml = sum2 = 0;
          ^
0_0_37762735_16062.cpp:20:12: error: 'sl' was not declared in this scope
 n = strlen(sl), m = strlen(s3);                  
            ^
0_0_37762735_16062.cpp:24:1: error: expected ']' before 'for'
 for (int i = n - 1, j  = 1; i >= 0; i --, j ++) {
 ^
0_0_37762735_16062.cpp:24:1: error: expected ';' before 'for'
0_0_37762735_16062.cpp:24:29: error: 'i' was not declared in this scope
 for (int i = n - 1, j  = 1; i >= 0; i --, j ++) {
                             ^
0_0_37762735_16062.cpp:24:43: error: 'j' was not declared in this scope
 for (int i = n - 1, j  = 1; i >= 0; i --, j ++) {
                                           ^
0_0_37762735_16062.cpp:50:1: error: expected '}' at end of input
 }
 ^