class Solution:
    def isSubsequence(self, s: str, t: str) -> bool:
        cnt = 0
        idt_m = 0
        for idx, chs in enumerate(s):
            for idt, cht in enumerate(t[idt_m:]):
                if cht == chs:
                    idt_m = idt + idt_m + 1
                    cnt += 1
                    break
        if cnt == len(s): return True
        return False
        
sol = Solution()
s = "axc"
t = "ahbgdc"
print(sol.isSubsequence(s,t))