def issubset(set,n,sum):

subset=[[False for i in range(sum+1)]for i in range(n+1)]

for i in range(n+1):

subset[i][0]=True

for j in range(sum+1):

subset[0][j]=False

for i in range(n+1):

for j in range(sum+1):

if j<set[i-1]:

subset[i][j]=subset[i-1][j]

if j>=set[i-1]:

subset[i][j]= (subset[i-1][j] or subset[i-1][j-set[i-1]])

return subset[n][sum]

set = [2, 3, 4, 5]

sum = 20

n = len(set)

if issubset(set, n, sum):

print("True")

else:

print("False")