View Compilation Error

0_0_33311931_1515.c:10:1: error: expected identifier or '(' before '/' token
 //a[1] = 1;
 ^
0_0_33311931_1515.c:11:1: error: expected identifier or '(' before '/' token
 //a[2] = (a[1] * 1) % 2 = 1;
 ^
0_0_33311931_1515.c:12:1: error: expected identifier or '(' before '/' token
 //a[3] = (a[1] * 1 + a[2] * 2) % 3 = 0;
 ^
0_0_33311931_1515.c:13:1: error: expected identifier or '(' before '/' token
 //a[4] = (a[1] * 1 + a[2] * 2 + a[3] * 3) % 4 = 3;
 ^