getting cluster points or generate confusion matrix from FCM?

In FCM I am giving cluster=2 and I am able to get the centroids, matrix and object function. But no I want to know which values are in cluster 1 and cluster 2? In other words I want to know the class labels of my dataset from FCM or I want to have confusion matrix from FCM.

In the dataset there is already class attribute but I want to compare the values generated from FCM for calculating accuracy.

Please help or suggest answers?

Thanks