while True:
try:
input_x = input()
for i in range(len(input_x)-1, -1, -1):
print(input_x[i], end="")
except:
break
while True:
try:
input_x = input()
for i in range(len(input_x)-1, -1, -1):
print(input_x[i], end="")
except:
break