View Compilation Error

0_0_26882212_26668.cpp: In function 'int main()':
0_0_26882212_26668.cpp:25:20: error: 'elseif' was not declared in this scope
   elseif(a%100 != 0)
                    ^
0_0_26882212_26668.cpp:27:3: error: 'else' without a previous 'if'
   else
   ^