View Compilation Error

0_0_14799440_13223.cpp:4:3: error: expected initializer before 'sum'
   sum=0;
   ^
0_0_14799440_13223.cpp:5:3: error: 'i' does not name a type
   i=1;
   ^
0_0_14799440_13223.cpp:6:3: error: expected unqualified-id before 'while'
   while(i<=100){
   ^