x=input() while x[0]==' ': x = x[1:len(x)] while x[-1]==' ': x=x[0:len(x)-1] print(x[::-1])
print(''.join(input()[::-1])) or strr = input() for i in strr[::-1]: print(i,end='')
# 正常方法
while True:
try:
lis = list(input())
i = 0
j = len(lis) - 1
while i < j:
lis[i], lis[j] = lis[j], lis[i]
i += 1
j -= 1
print("".join(lis))
except:
break
# 取巧
print(input()[::-1])
#这么写麻烦了,直接print(input()[::-1])就行 while True: try: s = input() s_reverse = s[::-1] print(s_reverse) except: break