Full Adder (logic)

{
  "nodes": [
    { "id":"a",    "type":"rounded",   "label":"A",    "x":40,   "y":60,  "fill":"#dbeafe" },
    { "id":"b",    "type":"rounded",   "label":"B",    "x":40,   "y":190, "fill":"#dbeafe" },
    { "id":"cin",  "type":"rounded",   "label":"Cin",  "x":40,   "y":320, "fill":"#dbeafe" },
    { "id":"xor1", "type":"logic-xor", "label":"XOR",  "x":280,  "y":90,  "fill":"#e0e7ff" },
    { "id":"and1", "type":"logic-and", "label":"AND",  "x":280,  "y":250, "fill":"#e0e7ff" },
    { "id":"xor2", "type":"logic-xor", "label":"XOR",  "x":540,  "y":140, "fill":"#e0e7ff" },
    { "id":"and2", "type":"logic-and", "label":"AND",  "x":540,  "y":300, "fill":"#e0e7ff" },
    { "id":"or1",  "type":"logic-or",  "label":"OR",   "x":790,  "y":250, "fill":"#e0e7ff" },
    { "id":"sum",  "type":"rounded",   "label":"Sum",  "x":800,  "y":120, "fill":"#dcfce7" },
    { "id":"cout", "type":"rounded",   "label":"Cout", "x":1040, "y":250, "fill":"#fef3c7" }
  ],
  "edges": [
    { "id":"e1","source":"a","target":"xor1" }, { "id":"e2","source":"b","target":"xor1" },
    { "id":"e3","source":"a","target":"and1" }, { "id":"e4","source":"b","target":"and1" },
    { "id":"e5","source":"xor1","target":"xor2" }, { "id":"e6","source":"cin","target":"xor2" },
    { "id":"e7","source":"xor1","target":"and2" }, { "id":"e8","source":"cin","target":"and2" },
    { "id":"e9","source":"xor2","target":"sum","label":"Σ" },
    { "id":"e10","source":"and1","target":"or1" }, { "id":"e11","source":"and2","target":"or1" },
    { "id":"e12","source":"or1","target":"cout" }
  ]
}