python

import sys

def look_and_say(s: str) -> str:
    """对字符串s进行一次变换（读出来）"""
    if not s:
        return ""
    result = []
    count = 1
    cur_char = s[0]
    for ch in s[1:]:
        if ch == cur_char:
            count += 1
        else:
            result.append(str(count) + cur_char)
            cur_char = ch
            count = 1
    # 最后一组
    result.append(str(count) + cur_char)
    return "".join(result)

def main():
    data = sys.stdin.read().split()
    if not data:
        return
    s = data[0].strip()
    n = int(data[1])
    for _ in range(n):
        s = look_and_say(s)
    print(s)

if __name__ == "__main__":
    main()