import sys
def komprimier_Verfahren(args):
    d = {}

    for stng in args:
        for c in stng:
            if (c not in d):
                d[c] = 1
            else:
                d[c] +=1

        for k,v in d.items():
            if(v > 1):
                print("{}{}".format(k,v), end = "")
            else:
                print(k, end = "")
        print("")

        d = {}



komprimier_Verfahren(sys.argv[1:])