View Compilation Error

0_0_28623740_19577.cpp: In function 'int main()':
0_0_28623740_19577.cpp:26:32: error: 'elseif' was not declared in this scope
             }elseif(s[i]%4 == 3){
                                ^
0_0_28623740_19577.cpp:28:14: error: 'else' without a previous 'if'
             }else{
              ^