View Compilation Error

0_0_38045993_21700.c: In function 'main':
0_0_38045993_21700.c:15:3: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
   for(int i=2;i<12;i++){
   ^
0_0_38045993_21700.c:15:3: note: use option -std=c99, -std=gnu99, -std=c11 or -std=gnu11 to compile your code
0_0_38045993_21700.c:19:4: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
    for(int i=3;i<=12;i++){
    ^