chore: revert export c example

Author: ruijialin-avalabs

examples/c-chain/export.ts

@@ -7,23 +7,23 @@ import { evmapi } from '../chain_apis';
 import { getEnvVars } from '../utils/getEnvVars';
 
 const main = async () => {
-  const { AVAX_PUBLIC_URL, C_CHAIN_ADDRESS, PRIVATE_KEY, P_CHAIN_ADDRESS } =
+  const { AVAX_PUBLIC_URL, C_CHAIN_ADDRESS, PRIVATE_KEY, X_CHAIN_ADDRESS } =
     getEnvVars();
 
   const provider = new JsonRpcProvider(AVAX_PUBLIC_URL + '/ext/bc/C/rpc');
 
   const context = await getContextFromURI(AVAX_PUBLIC_URL);
   const txCount = await provider.getTransactionCount(C_CHAIN_ADDRESS);
   const baseFee = await evmapi.getBaseFee();
-  const pAddressBytes = bech32ToBytes(P_CHAIN_ADDRESS);
+  const xAddressBytes = bech32ToBytes(X_CHAIN_ADDRESS);
 
   const tx = newExportTxFromBaseFee(
     context,
     baseFee / BigInt(1e9),
     BigInt(0.1 * 1e9),
-    context.pBlockchainID,
+    context.xBlockchainID,
     hexToBuffer(C_CHAIN_ADDRESS),
-    [pAddressBytes],
+    [xAddressBytes],
     BigInt(txCount),
   );