text: #include <stdio.h>
  /**
   * This function implements the addition operation using only bit operators.
   */
  int add(int a, int b) {
    int c = a & b;
    while (a != 0) {
      c = b & a;
      b = b ^ a;
      c = c << 1;
      a = c;
    }
    return b;
  }
  
  int main() {
    printf("%d\n", add(51, 152)); // 203
  }
  